Patent US2702686A successfully refreshed from Google Patents.
US2702686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm valve
Assignee: Individual
•
Filing: 1950-06-14
•
Granted: 1955-02-22
•
Expires: 1970-06-14
Abstract
No abstract record available.
Inventors
- 👤 Fortune Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:42
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/10; F16K41/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1662291A
Cited
US1146622A
Cited
US1470352A
Cited
US1802136A
Cited
US1779503A
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US1647823A
Cited
FR704479A
Cited
US2087621A
Cited
US2059111A
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US1923306A
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US1991621A
Cited
US1983106A
Cited
US2238387A
Cited
US2323531A
Cited
US2394243A
Cited
US2416061A
Cited
US2459721A
Cited
US2654559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-21 | 1958-08-23 | 1959-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-21 | 1962-08-23 | 1963-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-21 | 1966-08-23 | 1967-02-22 | $7700.00 | Window Closed / Lapsed |