US2617626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam actuated diaphragm sealed valve
Assignee: Individual
•
Filing: 1948-06-08
•
Granted: 1952-11-11
•
Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Neil H Calkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:03
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R25/042; Y; Y10; Y10T; Y10T137/00; Y10T137/7069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1270911A
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US1804659A
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GB359315A
Cited
US2027190A
Cited
US2187652A
Cited
US2378613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |