Patent US3599565A successfully refreshed from Google Patents.
Patent US3372899A successfully refreshed from Google Patents.
US3372899A
Expired / Lapsed
US
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Radio actuated and manually operable pilot valve controls
Assignee: COSEN JAMES R
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Filing: 1965-09-15
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Granted: 1968-03-12
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Expires: 1985-09-15
Abstract
No abstract record available.
Inventors
- 👤 John A Mcpherson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:14
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; A; A01; A01G; A01G25/00; A01G25/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146878A
Cited
US2345152A
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US2474355A
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US2651326A
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US3043331A
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US2937907A
Cited
US3075737A
Cited
US3265350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |