US3191813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laboratory apparatus
Assignee: Cooke Engineering Co
•
Filing: 1962-04-23
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Granted: 1965-06-29
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Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Alan A Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:16
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/38; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0241; B01L3/0244; B01L3/0255; B01L2400/00; B01L2400/04; B01L2400/0403; B01L2400/0406; G01N35/00; G01N35/10; G01N2035/1027; G01N2035/1048; G01N2035/1058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A LIQUID RETAINING LOOP HAVING A LONGITUDINALLY APERTURED HANDLE AND A HOLLOW HEAD FORMED OF A PAIR OF SPIRALLY WOUND WIRES FOR CARRYING LIQUID HAVING A SURFACE TENSION, THE APERTURES BETWEEN ADJACENT TURNS OF SAID SPIRALLY WOUND WIRES BEING OF A SIZE NOT GREATER THAN THAT WHICH WILL RETAIN SAID LIQUID IN SAID LOOP BY THE SAID SURFACE TENSION AND THE SPIRALLY WOUND WIRES CONSTITUTING A HOLLOW CAGE SURROUNDING AND DEFINING A LIQUID-RECEIVING ENCLOSURE, THE ENDS OF SAID WIRES BEING DISPOSED IN SAID APERTURE IN SPACED SIDE-BY-SIDE RELATIONSHIP AND SAID HANDLE BEING STAKED BETWEEN SAID WIRES TO SEAL SAID APERTURE AND SECURE SAID HEAD TO SAID HANDLE.
Claim 2
Dependent Claim
107 words
A LIQUID RETAINING LOOP HAVING A LONGITUDINALLY APERTURED HANDLE AND A HOLLOW HEAD FORMED OF A PAIR OF SPIRALLY WOUND WIRES FOR CARRYING LIQUID HAVING A SURFACE TENSION, THE APERTURES BETWEEN ADJACENT TURNS OF SAID SPIRALLY WOUND WIRES BEING OF A SIZE NOT GREATER THAN THAT WHICH WILL RETAIN SAID LIQUID IN SAID LOOP BY THE SAID SURFACE TENSION AND THE SPIRALLY WOUND WIRES CONSTITUTING A HOLLOW CAGE SURROUNDING AND DEFINING A LIQUID-RECEIVING ENCLOSURE, THE ENDS OF SAID WIRES BEING DISPOSED IN SAID APERTURE IN SPACED SIDE-BY-SIDE RELATIONSHIP AND SAID HANDLE BEING STAKED BETWEEN SAID WIRES TO SEAL SAID APERTURE AND SECURE SAID HEAD TO SAID HANDLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |