Patent US3346061A successfully refreshed from Google Patents.
US2707971A
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Gas valve
Assignee: Harper Wyman Co
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Filing: 1949-09-15
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Granted: 1955-05-10
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Expires: 1969-09-15
Abstract
No abstract record available.
Inventors
- 👤 Charles C Lamar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:12
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; Y10T137/86718; Y10T137/86743; Y10T137/86751; Y10T137/87096; Y10T137/87121; Y10T137/87129; Y10T137/87265; Y10T137/87322; Y10T137/87378; Y10T137/87386; Y10T137/87917; Y10T137/88022; Y10T137/8803
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) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |