US2907897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure transducer
Assignee: Individual
•
Filing: 1956-07-09
•
Granted: 1959-10-06
•
Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Howard H Sander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
H; H04; H04R; H04R23/00; H04R23/006; G; G01; G01L; G01L9/00; G01L9/0041; G01L9/007; G01L9/0098; Y; Y10; Y10S; Y10S73/00; Y10S73/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US543843A
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US1794376A
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US2553490A
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US2553491A
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US2702316A
Cited
US2695930A
Cited
US2790032A
Cited
US2707769A
Cited
US2866857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |