US3100985A
Expired / Lapsed
US
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Apparatus for determining fluid characteristics
Assignee: Individual
•
Filing: 1960-06-27
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Granted: 1963-08-20
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur N Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:37
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/18; G01N27/185; G01N25/00; G01N25/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
APPARATUS FOR DETERMINING FLUID CHARACTERISTICS COMPRISING A BODY MEANS INCLUDING FIRST AND SECOND PORTIONS, SAID FIRST AND SECOND PORTIONS BEING FORMED OF METALLIC AND NON-METALLIC PORTIONS RESPECTIVELY WHICH PROVIDE BOUNDARY LAYER FILMS OF DIFFERENT CHARACTERISTICS WHEN IN THE PRESENCE OF A BODY OF FLUID, A FIRST TEMPERATURE-SENSITIVE IMPEDANCE MEANS OPERATIVELY ASSOCIATED
Claim 2
Dependent Claim
51 words
APPARATUS FOR DETERMINING FLUID CHARACTERISTICS COMPRISING A BODY MEANS INCLUDING FIRST AND SECOND PORTIONS, SAID FIRST AND SECOND PORTIONS BEING FORMED OF METALLIC AND NON-METALLIC PORTIONS RESPECTIVELY WHICH PROVIDE BOUNDARY LAYER FILMS OF DIFFERENT CHARACTERISTICS WHEN IN THE PRESENCE OF A BODY OF FLUID, A FIRST TEMPERATURE-SENSITIVE IMPEDANCE MEANS OPERATIVELY ASSOCIATED
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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |