US2790043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure responsive device
Assignee: Motors Liquidation Co
•
Filing: 1952-04-09
•
Granted: 1957-04-23
•
Expires: 1972-04-09
Abstract
No abstract record available.
Inventors
- 👤 Bertil H Clason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:28
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/08; G01L23/18; G01L9/00; G01L9/0041; G01L9/0051; G01L9/0057; H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370193A
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US1479733A
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US1599899A
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US1712657A
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US1719959A
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US1951245A
Cited
US2297678A
Cited
US2404843A
Cited
US2435143A
Cited
US2534497A
Cited
US2492261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |