Patent US2907346A successfully refreshed from Google Patents.
US2907346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm valve
Assignee: Individual
•
Filing: 1956-02-17
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Granted: 1959-10-06
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Expires: 1976-02-17
Abstract
No abstract record available.
Inventors
- 👤 Fortune Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:57
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/126; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87434
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2750808A
Cited
US1690251A
Cited
US2159540A
Cited
US2186024A
Cited
US2194257A
Cited
US2247363A
Cited
US2579982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |