Patent US2757643A successfully refreshed from Google Patents.
US2757643A
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US
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Valve means with built in dashpot
Assignee: Old Carco LLC
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Filing: 1951-08-09
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Granted: 1956-08-07
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Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 William A Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:19
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/062; F; F15; F15B; F15B13/00; F15B13/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86606; Y10T137/87169; Y10T137/87233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2069540A
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US2061120A
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US2334918A
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US2369547A
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US2404281A
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US2409842A
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US2565929A
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US2462915A
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US2650669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |