Patent US2918273A successfully refreshed from Google Patents.
US2918273A
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Damped air valve
Assignee: Gabriel Co
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Filing: 1957-02-13
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Granted: 1959-12-22
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Expires: 1977-02-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Whisler
- 👤 Robert L Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/027; B60G17/0272; B60G15/00; B60G15/02; B60G15/06; B60G15/062; F; F16; F16F; F16F9/00; F16F9/02; F16F9/0209; B60G2202/00; B60G2202/30; B60G2202/32; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87233; Y10T137/87241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |