US2853880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absolute pressure sensing device
Assignee: Westinghouse Electric Corp
•
Filing: 1954-03-10
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Granted: 1958-09-30
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Expires: 1974-03-10
Abstract
No abstract record available.
Inventors
- 👤 Arnold H Redding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:18
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2468768A
Cited
FR581478A
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US1697344A
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FR706526A
Cited
US2298150A
Cited
US2244007A
Cited
US2593339A
Cited
US2641130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |