Patent US3719086A successfully refreshed from Google Patents.
US3719086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquids sampler with probe-bathing chamber
Assignee: Damon Corp
•
Filing: 1971-01-12
•
Granted: 1973-03-06
•
Expires: 1991-01-12
Abstract
Abstract Clinical or like apparatus for introducing samples of liquids successively from plural liquid vessels into a conduit by means of a movable probe, has a probe-bathing fluid-containing system through which the probe slidably passes as it moves between the sampling and other positions. In the sampling position, the probe extends beyond the bathing container to immerse the probe inlet end in a vessel of sample liquid. The probe is retractable from this position to draw the probe inlet end into the bathing container, where it is immersed in a bath of liquid, typically for cleansing the probe and/or for the aspiration into the probe of the bathing liquid. Pneumatic sealing in the bathing container allows the probe to slide freely relative to it without leakage of the bathing liquid out of the container, and gas scavening of the probe as it again passes out of the bathing container removes the bathing liquid from it, for preventing contamination of the sample liquids.
Inventors
- 👤 J Bannister
- 👤 J Peters
- 👤 M Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:26
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1004
Claims Analysis
Total Claims: 100
Claim 1
Independent Claim
148 words
Liquid sampling equipment in which an aspirating end of a liquid-aspirating probe is immersed successively in sequentially ordered containers for the removal of a liquid sample from each container and in which the materials in at least some of the containers includes both the liquids to be sampled and material denser than said liquids, the improvement wherein A. each sample container has a tubular compartment forming the bottom thereof and with a volume larger than the volume of said denser material likely to be in any sample container, B. said probe has a closed plug secured to the aspirating end thereof and elongating said probe beyond the probe aperture through which said probe aspirates said liquid samples, and said probe fits within said container tubular compartments, and C. probe positioning means extends said probe into each said sample container to dispose said plug within said tubular compartment thereof.
Claim 2
Dependent Claim
148 words
Liquid sampling equipment in which an aspirating end of a liquid-aspirating probe is immersed successively in sequentially ordered containers for the removal of a liquid sample from each container and in which the materials in at least some of the containers includes both the liquids to be sampled and material denser than said liquids, the improvement wherein A. each sample container has a tubular compartment forming the bottom thereof and with a volume larger than the volume of said denser material likely to be in any sample container, B. said probe has a closed plug secured to the aspirating end thereof and elongating said probe beyond the probe aperture through which said probe aspirates said liquid samples, and said probe fits within said container tubular compartments, and C. probe positioning means extends said probe into each said sample container to dispose said plug within said tubular compartment thereof.
Claim 3
Dependent Claim
4 words
having a fluid chamber,
Claim 4
Dependent Claim
4 words
having a fluid chamber,
Claim 5
Dependent Claim
77 words
having a first fluid-passing aperture therethrough for communicating with said vessels and a second fluid-passing aperture therethrough removed from said first aperture and for communicating with said conduit, and having a fluid passage therein between said apertures thereof, and having a first end spaced from said fiRst aperture thereof in the direction away from said second aperture thereof and having a closed end plug section forming the length thereof between said first end and first aperture thereof,
Claim 6
Dependent Claim
77 words
having a first fluid-passing aperture therethrough for communicating with said vessels and a second fluid-passing aperture therethrough removed from said first aperture and for communicating with said conduit, and having a fluid passage therein between said apertures thereof, and having a first end spaced from said fiRst aperture thereof in the direction away from said second aperture thereof and having a closed end plug section forming the length thereof between said first end and first aperture thereof,
Claim 7
Dependent Claim
7 words
walls forming a fluid-containing bathing chamber therein,
Claim 8
Dependent Claim
7 words
walls forming a fluid-containing bathing chamber therein,
Claim 9
Dependent Claim
7 words
elongated between first and second fluid-passing apertures,
Claim 10
Dependent Claim
7 words
elongated between first and second fluid-passing apertures,
Claim 11
Dependent Claim
4 words
having a fluid chamber,
Claim 12
Dependent Claim
4 words
having a fluid chamber,
Claim 13
Dependent Claim
148 words
Liquid sampling equipment in which an aspirating end of a liquid-aspirating probe is immersed successively in sequentially ordered containers for the removal of a liquid sample from each container and in which the materials in at least some of the containers includes both the liquids to be sampled and material denser than said liquids, the improvement wherein A. each sample container has a tubular compartment forming the bottom thereof and with a volume larger than the volume of said denser material likely to be in any sample container, B. said probe has a closed plug secured to the aspirating end thereof and elongating said probe beyond the probe aperture through which said probe aspirates said liquid samples, and said probe fits within said container tubular compartments, and C. probe positioning means extends said probe into each said sample container to dispose said plug within said tubular compartment thereof.
Claim 14
Dependent Claim
148 words
Liquid sampling equipment in which an aspirating end of a liquid-aspirating probe is immersed successively in sequentially ordered containers for the removal of a liquid sample from each container and in which the materials in at least some of the containers includes both the liquids to be sampled and material denser than said liquids, the improvement wherein A. each sample container has a tubular compartment forming the bottom thereof and with a volume larger than the volume of said denser material likely to be in any sample container, B. said probe has a closed plug secured to the aspirating end thereof and elongating said probe beyond the probe aperture through which said probe aspirates said liquid samples, and said probe fits within said container tubular compartments, and C. probe positioning means extends said probe into each said sample container to dispose said plug within said tubular compartment thereof.
Claim 15
Dependent Claim
38 words
having a first fluid-passing aperture therethrough for communicating with said vessels and a second fluid-passing aperture therethrough removed from said first aperture and for communicating with said conduit, and having a fluid passage therein between said apertures thereof,
Claim 16
Dependent Claim
38 words
having a first fluid-passing aperture therethrough for communicating with said vessels and a second fluid-passing aperture therethrough removed from said first aperture and for communicating with said conduit, and having a fluid passage therein between said apertures thereof,
Claim 17
Dependent Claim
23 words
said first passage portion closely fitting about said probe means for restricting passage of fluid therethrough about the outside of said probe means,
Claim 18
Dependent Claim
23 words
said first passage portion closely fitting about said probe means for restricting passage of fluid therethrough about the outside of said probe means,
Claim 19
Dependent Claim
38 words
having a first fluid-passing aperture therethrough for communicating with said vessels and a second fluid-passing aperture therethrough removed from said first aperture and for communicating with said conduit, and having a fluid passage therein between said apertures thereof,
Claim 20
Dependent Claim
38 words
having a first fluid-passing aperture therethrough for communicating with said vessels and a second fluid-passing aperture therethrough removed from said first aperture and for communicating with said conduit, and having a fluid passage therein between said apertures thereof,
Claim 21
Dependent Claim
5 words
having an inner bathing chamber
Claim 22
Dependent Claim
5 words
having an inner bathing chamber
Claim 23
Dependent Claim
7 words
elongated between first and second fluid-passing apertures,
Claim 24
Dependent Claim
7 words
elongated between first and second fluid-passing apertures,
Claim 25
Dependent Claim
7 words
walls forming a fluid-containing bathing chamber therein,
Claim 26
Dependent Claim
7 words
walls forming a fluid-containing bathing chamber therein,
Claim 27
Dependent Claim
125 words
slidable within said first passage section and reciprocatable relative to said bathing means and within said first passage section between at least a first rest position where said first aperture is disposed in said chamber and a second position where said first aperture is outside said passage first end on the side thereof removed from said chamber for immersion in one said liquid vessel, C. probe-position control means for controlling movement of said probe means selectively to said first position and to said second position, D. liquid delivery means coupled with said fluid inlet passage for the delivery of liquid to said chamber, and E. pressure means coupled with said fluid outlet passage for the removal therethrough of fluid from said first slide passage section.
Claim 28
Dependent Claim
125 words
slidable within said first passage section and reciprocatable relative to said bathing means and within said first passage section between at least a first rest position where said first aperture is disposed in said chamber and a second position where said first aperture is outside said passage first end on the side thereof removed from said chamber for immersion in one said liquid vessel, C. probe-position control means for controlling movement of said probe means selectively to said first position and to said second position, D. liquid delivery means coupled with said fluid inlet passage for the delivery of liquid to said chamber, and E. pressure means coupled with said fluid outlet passage for the removal therethrough of fluid from said first slide passage section.
Claim 29
Dependent Claim
57 words
first and second tubular-bored slide passages extending on opposite sides from said first chamber with the bores thereof communicating with the chamber interior and disposed in line with each other, said first slide passage having end portions with said bore therethrough closely fitting about said probe and having a tubular bore therebetween significantly larger than said probe,
Claim 30
Dependent Claim
57 words
first and second tubular-bored slide passages extending on opposite sides from said first chamber with the bores thereof communicating with the chamber interior and disposed in line with each other, said first slide passage having end portions with said bore therethrough closely fitting about said probe and having a tubular bore therebetween significantly larger than said probe,
Claim 31
Dependent Claim
26 words
having a lower slide passage section below and communicating with said bathing chamber and extending therefrom to a passage fiRst end spaced from said bathing chamber,
Claim 32
Dependent Claim
26 words
having a lower slide passage section below and communicating with said bathing chamber and extending therefrom to a passage fiRst end spaced from said bathing chamber,
Claim 33
Dependent Claim
25 words
extending within said fluid container slidably seated at least in said second slide passage with said second aperture thereof outside said second slide passage, and
Claim 34
Dependent Claim
25 words
extending within said fluid container slidably seated at least in said second slide passage with said second aperture thereof outside said second slide passage, and
Claim 35
Dependent Claim
125 words
slidable within said lower passage section and reciprocatable relative to said bathing means and within said lower passage section between at least a first rest position where said first aperture is disposed in said chamber and a second position where said first aperture is outside said passage first end on the side thereof removed from said chamber for immersion in one said liquid vessel, C. probe-position control means for controlling movement of said probe means selectively to said first position and to said second position, D. liquid delivery means coupled with said fluid inlet passage for the delivery of liquid to said chamber, and E. pressure means coupled with said fluid outlet passage for the removal therethrough of fluid from said lower slide passage section.
Claim 36
Dependent Claim
125 words
slidable within said lower passage section and reciprocatable relative to said bathing means and within said lower passage section between at least a first rest position where said first aperture is disposed in said chamber and a second position where said first aperture is outside said passage first end on the side thereof removed from said chamber for immersion in one said liquid vessel, C. probe-position control means for controlling movement of said probe means selectively to said first position and to said second position, D. liquid delivery means coupled with said fluid inlet passage for the delivery of liquid to said chamber, and E. pressure means coupled with said fluid outlet passage for the removal therethrough of fluid from said lower slide passage section.
Claim 37
Dependent Claim
104 words
slidable within said lower passage section and reciprocatable at least partly within said lower passage section relative to said bathing means between at least a first position where said first aperture is disposed in said chamber and a second Position where said first aperture is outside said passage first end on the side thereof removed from said chamber for immersion in one said liquid vessel, C. probe-position control means for controlling movement of said probe means selectively to said first position and to said second position, D. liquid delivery means coupled with said fluid inlet passage for the delivery of liquid to said chamber.
Claim 38
Dependent Claim
104 words
slidable within said lower passage section and reciprocatable at least partly within said lower passage section relative to said bathing means between at least a first position where said first aperture is disposed in said chamber and a second Position where said first aperture is outside said passage first end on the side thereof removed from said chamber for immersion in one said liquid vessel, C. probe-position control means for controlling movement of said probe means selectively to said first position and to said second position, D. liquid delivery means coupled with said fluid inlet passage for the delivery of liquid to said chamber.
Claim 39
Dependent Claim
22 words
having a lower slide passage section communicating with said chamber and extending therefrom to a passage first end spaced from said chamber,
Claim 40
Dependent Claim
22 words
having a lower slide passage section communicating with said chamber and extending therefrom to a passage first end spaced from said chamber,
Claim 41
Dependent Claim
25 words
extending within said fluid container slidably seated at least in said upper slide passage with said second aperture thereof outside said upper slide passage, and
Claim 42
Dependent Claim
25 words
extending within said fluid container slidably seated at least in said upper slide passage with said second aperture thereof outside said upper slide passage, and
Claim 43
Dependent Claim
30 words
lower and upper tubular-bored slide passages extending on opposite sides from said first chamber with the bores thereof communicating with the chamber interior and disposed in line with each other,
Claim 44
Dependent Claim
30 words
lower and upper tubular-bored slide passages extending on opposite sides from said first chamber with the bores thereof communicating with the chamber interior and disposed in line with each other,
Claim 45
Dependent Claim
25 words
said third slide passage portion closely fitting about said probe means for restricting passage of fluid therethrough about the outside of said probe means, and
Claim 46
Dependent Claim
25 words
said third slide passage portion closely fitting about said probe means for restricting passage of fluid therethrough about the outside of said probe means, and
Claim 47
Dependent Claim
22 words
having a first slide passage section communicating with said chamber and extending therefrom to a passage first end spaced from said chamber,
Claim 48
Dependent Claim
22 words
having a first slide passage section communicating with said chamber and extending therefrom to a passage first end spaced from said chamber,
Claim 49
Dependent Claim
43 words
The improvement in liquid sampling equipment as defined in claim 1 further characterized in that A. each sample container has said tubular compartment thereof depending from a further compartment having a cross section larger than the cross section of said tubular compartment thereof.
Claim 50
Dependent Claim
13 words
having a fluid inlet passage for the delivery of fluid to said chamber,
Claim 51
Dependent Claim
13 words
having a fluid inlet passage for the delivery of fluid to said chamber,
Claim 52
Dependent Claim
43 words
said second slide passage portion having said fluid outlet passage feeding therefrom and having a cross sectional shape significantly larger than that of either of said first and second passage portions for forming an annular chamber about said probe means when disposed therein,
Claim 53
Dependent Claim
43 words
said second slide passage portion having said fluid outlet passage feeding therefrom and having a cross sectional shape significantly larger than that of either of said first and second passage portions for forming an annular chamber about said probe means when disposed therein,
Claim 54
Dependent Claim
14 words
a fluid inlet passage feeding into said chamber for the delivery of fluid thereto,
Claim 55
Dependent Claim
14 words
a fluid inlet passage feeding into said chamber for the delivery of fluid thereto,
Claim 56
Dependent Claim
97 words
slidable relative to said fluid container between a first position where said first aperture is within said chamber and a second position where said first aperture is outside said lower slide passage, C. probe-position control means selectively operable for controlling the positioning of said probe in either of said first and second positions, D. liquid delivery means coupled with said fluid inlet passage for the selective delivery of liquid to said chamber by way of said inlet passage, and E. pressure means coupled with said fluid outlet passage for exhausting fluid therethrough from said lower slide passage.
Claim 57
Dependent Claim
97 words
slidable relative to said fluid container between a first position where said first aperture is within said chamber and a second position where said first aperture is outside said lower slide passage, C. probe-position control means selectively operable for controlling the positioning of said probe in either of said first and second positions, D. liquid delivery means coupled with said fluid inlet passage for the selective delivery of liquid to said chamber by way of said inlet passage, and E. pressure means coupled with said fluid outlet passage for exhausting fluid therethrough from said lower slide passage.
Claim 58
Dependent Claim
15 words
having a fluid inlet passage feeding into said chamber for the delivery of fluid thereto,
Claim 59
Dependent Claim
15 words
having a fluid inlet passage feeding into said chamber for the delivery of fluid thereto,
Claim 60
Dependent Claim
75 words
The improvement in liquid sampling equipment as defined in claim 1 further characterized in that A. said tubular compartment of each sample container has a volume larger than the sum of the volumes of said denser material likely to be in any sample container plus the volume of said probe plug, and B. said probe positioning means extends said probe into each sample container to dispose said plug substantially entirely within said tubular compartment thereof.
Claim 61
Dependent Claim
33 words
slidable relative to said first container between a first position where said first aperture is within said chamber and a second position where said first aperture is outside said first slide passage, and
Claim 62
Dependent Claim
33 words
slidable relative to said first container between a first position where said first aperture is within said chamber and a second position where said first aperture is outside said first slide passage, and
Claim 63
Dependent Claim
13 words
having a fluid inlet passage for the delivery of fluid to said chamber,
Claim 64
Dependent Claim
13 words
having a fluid inlet passage for the delivery of fluid to said chamber,
Claim 65
Dependent Claim
14 words
a fluid inlet passage feeding into said chamber for the delivery of fluid thereto,
Claim 66
Dependent Claim
14 words
a fluid inlet passage feeding into said chamber for the delivery of fluid thereto,
Claim 67
Dependent Claim
21 words
a first fluid outlet passage feeding from said first slide passage for the removal of fluid therefrom, B. a tubular probe
Claim 68
Dependent Claim
21 words
a first fluid outlet passage feeding from said first slide passage for the removal of fluid therefrom, B. a tubular probe
Claim 69
Dependent Claim
41 words
having a fluid outlet passage feeding from said first slide passage section, intermediate said passage first end and the entry of said first passage section into said chamber, for the removal of fluid from said first passage section, B. probe means
Claim 70
Dependent Claim
41 words
having a fluid outlet passage feeding from said first slide passage section, intermediate said passage first end and the entry of said first passage section into said chamber, for the removal of fluid from said first passage section, B. probe means
Claim 71
Dependent Claim
40 words
having a fluid outlet passage communicating with said lower slide passage section, intermediate said passage first end and the entry of said lower slide passage section into said chamber, for the removal of fluid from said lower slide passage section,
Claim 72
Dependent Claim
40 words
having a fluid outlet passage communicating with said lower slide passage section, intermediate said passage first end and the entry of said lower slide passage section into said chamber, for the removal of fluid from said lower slide passage section,
Claim 73
Dependent Claim
133 words
a closed plug secured thereto adjacent said first aperture and further elongating said probe beyond said first aperture in the direction away from said second aperture, C. probe-position control means selectively operable for controlling the positioning of said probe in either of said first and second positions, for seating said probe plug at least in said first slide passage end portion adjacent said chamber when said probe is in said first position, for restricting the passage of fluid about said probe between said chamber and said first slide passage. D. liquid delivery means coupled with said fluid inlet passage for the selective delivery of liquid to said chamber by way of said inlet passage, and E. pressure means coupled with said fluid outlet passage for exhausting fluid therethrough from said first slide passage.
Claim 74
Dependent Claim
133 words
a closed plug secured thereto adjacent said first aperture and further elongating said probe beyond said first aperture in the direction away from said second aperture, C. probe-position control means selectively operable for controlling the positioning of said probe in either of said first and second positions, for seating said probe plug at least in said first slide passage end portion adjacent said chamber when said probe is in said first position, for restricting the passage of fluid about said probe between said chamber and said first slide passage. D. liquid delivery means coupled with said fluid inlet passage for the selective delivery of liquid to said chamber by way of said inlet passage, and E. pressure means coupled with said fluid outlet passage for exhausting fluid therethrough from said first slide passage.
Claim 75
Dependent Claim
61 words
having fluid withdrawing means coupled with said lower slide passage for maintaining therein a pressure not greater than the pressure within said fluid chamber and lower than the pressure at said passage first end, and for maintaining selectively related pressures above and below said fluid chamber, both of which are not greater than the pressure within said chamber, B. probe means
Claim 76
Dependent Claim
61 words
having fluid withdrawing means coupled with said lower slide passage for maintaining therein a pressure not greater than the pressure within said fluid chamber and lower than the pressure at said passage first end, and for maintaining selectively related pressures above and below said fluid chamber, both of which are not greater than the pressure within said chamber, B. probe means
Claim 77
Dependent Claim
43 words
fluid withdrawing means in communication with said upper and lower slide passages for withdrawing fluid therefrom and for maintaining selectively related pressures above and below said fluid-containing bathing chamber, both of which are not greater than the pressure within said fluid-containing bathing chamber,
Claim 78
Dependent Claim
43 words
fluid withdrawing means in communication with said upper and lower slide passages for withdrawing fluid therefrom and for maintaining selectively related pressures above and below said fluid-containing bathing chamber, both of which are not greater than the pressure within said fluid-containing bathing chamber,
Claim 79
Dependent Claim
25 words
Liquid transfer apparatus for successively transferring a sample of liquid between each of plural liquid vessels and a conduit, said apparatus comprising A. probe-bathing means
Claim 80
Dependent Claim
25 words
Liquid transfer apparatus for successively transferring a sample of liquid between each of plural liquid vessels and a conduit, said apparatus comprising A. probe-bathing means
Claim 81
Dependent Claim
35 words
a tubular scavenging portion formed within said lower slide passage, said scavenging portion being an annular chamber with a cross sectional shape larger than the remainder of said lower slide passage, B. a tubular probe
Claim 82
Dependent Claim
35 words
a tubular scavenging portion formed within said lower slide passage, said scavenging portion being an annular chamber with a cross sectional shape larger than the remainder of said lower slide passage, B. a tubular probe
Claim 83
Dependent Claim
52 words
having an upper slide passage section above and communicating with said bathing chamber, said upper slide passage being substantially centered on an axis common with said lower slide passage, said upper and lower slide passages having a bore-like configuration, the diameter of which is smaller than the diameter of said bathing chamber,
Claim 84
Dependent Claim
52 words
having an upper slide passage section above and communicating with said bathing chamber, said upper slide passage being substantially centered on an axis common with said lower slide passage, said upper and lower slide passages having a bore-like configuration, the diameter of which is smaller than the diameter of said bathing chamber,
Claim 85
Dependent Claim
59 words
Liquid transfer apparatus as defined in claim 4 in which said probe-position control means includes means for controlling the movement of said probe means from said first position to said second position such that said probe comes to rest in said second position when said end plug section thereof abuts against substantially solid material within one said liquid vessel.
Claim 86
Dependent Claim
27 words
Liquid sampling apparatus for successively withdrawing into a conduit a sample of liquid from each of plural liquid vessels, said apparatus comprising A. a fluid container having
Claim 87
Dependent Claim
27 words
Liquid sampling apparatus for successively withdrawing into a conduit a sample of liquid from each of plural liquid vessels, said apparatus comprising A. a fluid container having
Claim 88
Dependent Claim
22 words
having a further fluid outlet passage feeding from said upper slide passage section for the removal of fluid therefrom. B. probe means
Claim 89
Dependent Claim
22 words
having a further fluid outlet passage feeding from said upper slide passage section for the removal of fluid therefrom. B. probe means
Claim 90
Dependent Claim
30 words
Liquid transfer apparatus for successively transferring a sample of liquid between each of plural liquid vessels and a conduit, said apparatus comprising A. probe-bathing means including a probe-bathing fluid container
Claim 91
Dependent Claim
30 words
Liquid transfer apparatus for successively transferring a sample of liquid between each of plural liquid vessels and a conduit, said apparatus comprising A. probe-bathing means including a probe-bathing fluid container
Claim 92
Dependent Claim
33 words
Liquid transfer apparatus as defined in claim 7 in which said probe means is slidably received in said upper passage section both when in said first position and when in said second position.
Claim 93
Dependent Claim
40 words
Liquid transfer apparatus as defined in claim 7 in which said probe means is slidably received in said upper slide passage section and protrudes therefrom beyond said passage second end to dispose said second aperture thereof outside said bathing means.
Claim 94
Dependent Claim
81 words
Liquid transfer apparatus as defined in claim 7 A. in which said probe means is slidably seated at least partially in said lower slide passage section throughout the reciprocation thereof to said first and second positions, B. in which said chamber has a volume significantly larger than the volume of said probe means disposed therein, C. in which said lower slide passage section has first, second and third portions arranged in succession between said chamber and said slide passage first end,
Claim 95
Dependent Claim
53 words
Liquid transfer apparatus as defined in claim 7 further comprising sequencing means for operation with said control means to dispose said probe means sequentially in said second position, move said probe means to said first position, and then remove said probe means from said first position in a direction towards said second position.
Claim 96
Dependent Claim
27 words
Liquid sampling apparatus for successively withdrawing into a conduit a saMple of liquid from each of plural liquid vessels, said apparatus comprising A. a fluid container having
Claim 97
Dependent Claim
27 words
Liquid sampling apparatus for successively withdrawing into a conduit a saMple of liquid from each of plural liquid vessels, said apparatus comprising A. a fluid container having
Claim 98
Dependent Claim
38 words
Liquid sampling apparatus as defined in claim 12, in which said fluid withdrawing means includes fluid outlet passages each with an inner end thereof feeding from said upper or lower slide passage, and coupled with said pressure means.
Claim 99
Dependent Claim
30 words
Liquid sampling apparatus as defined in claim 12 in which said fluid container further has a liquid drain passage feeding out from said chamber for the removal of fluid therefrom.
Claim 100
Dependent Claim
30 words
Liquid sampling apparatus as defined in claim 12 further comprising fluid pumping means coupled to said probe second aperture for aspirating fluid into said probe at said first aperture thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |