Patent DE711115C successfully refreshed from Google Patents.
US2615598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoted actuator for both fluid inlet and pressure relief valves
Assignee: Individual
•
Filing: 1948-05-03
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Granted: 1952-10-28
•
Expires: 1968-05-03
Abstract
No abstract record available.
Inventors
- 👤 Wayne B Watkins
- 👤 Karl W Erge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:28
CPC Classifications
F; F16; F16N; F16N5/00; F16N5/02; F16K; F16K24/00; F16K24/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1458698A
Cited
US1812643A
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US2184413A
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US2142081A
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US2120008A
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US2446501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |