Patent US2632467A successfully refreshed from Google Patents.
US2632467A
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Gas valve
Assignee: Harper Wyman Co
•
Filing: 1947-08-30
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Granted: 1953-03-24
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Expires: 1967-08-30
Abstract
No abstract record available.
Inventors
- 👤 Charles C Lamar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:11
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/12; Y; Y10; Y10S; Y10S137/00; Y10S137/905; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871; Y10T137/87265; Y10T137/87378; Y10T137/87386; Y10T137/87523; Y10T137/87539; Y10T137/87547
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1589224A
Cited
US1621738A
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US2113027A
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DE656682C
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US2162231A
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US2257886A
Cited
US2249982A
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US2262703A
Cited
US2299624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |