Patent US5532719A successfully refreshed from Google Patents.
US2967022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: Standard Thomson Corp
•
Filing: 1956-04-20
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Granted: 1961-01-03
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Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Charles W Wood
- 👤 Carlton W Bondurant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:54
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US200749A
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US578297A
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US945151A
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US1430467A
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US1695241A
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US2178122A
Cited
US2358739A
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GB682923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |