Patent US2980385A successfully refreshed from Google Patents.
US2980385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control valve
Assignee: Individual
•
Filing: 1956-08-03
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Granted: 1961-04-18
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Expires: 1976-08-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Hunter
- 👤 Lorenzo A Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:08
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732167A
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US848739A
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US1269721A
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US1805733A
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US1877780A
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US2039109A
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US1851062A
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US2724405A
Cited
US2781051A
Cited
US2748798A
Cited
US2789577A
Cited
US2918250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |