US2772067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time control valve
Assignee: Individual
•
Filing: 1953-03-23
•
Granted: 1956-11-27
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Peter H Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:24
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/48; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US558544A
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US870597A
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US2194243A
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US2192578A
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US2315774A
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US2305151A
Cited
US2338804A
Cited
US2527851A
Cited
US2661577A
Cited
US2635691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |