US2920307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable gap reluctance transducer
Assignee: Jersey Production Research Co
•
Filing: 1954-07-19
•
Granted: 1960-01-05
•
Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Allen A Chernosky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:00
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US252256A
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US1640538A
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US1748993A
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US1889398A
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US2269453A
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US2348225A
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US2311079A
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US2328222A
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US2637823A
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US2708742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |