US3273392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot wire liquid level detector for cryogenic fluids
Assignee: Individual
•
Filing: 1963-07-17
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Granted: 1966-09-20
•
Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 William A Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:41
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/246; G01F23/247; G01F23/248
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A LIQUID LEVEL SENSOR TO BE UTILIZED FOR MEASURING THE LEVEL OF CRYOGENIC FLUIDS INCLUDING A SUPPORTING STRUCTURE; AT LEAST A PAIR OF ELECTRICALLY-CONDUCTIVE PROBES SUPPORTED ON SAID STRUCTURE, RESISTANCE WIRES SPANNING THE PROBES AND IN ELECTRICAL CONNECTION THEREWITH, AND A
Claim 2
Dependent Claim
41 words
A LIQUID LEVEL SENSOR TO BE UTILIZED FOR MEASURING THE LEVEL OF CRYOGENIC FLUIDS INCLUDING A SUPPORTING STRUCTURE; AT LEAST A PAIR OF ELECTRICALLY-CONDUCTIVE PROBES SUPPORTED ON SAID STRUCTURE, RESISTANCE WIRES SPANNING THE PROBES AND IN ELECTRICAL CONNECTION THEREWITH, AND A
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |