US2796074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure control valve
Assignee: Individual
•
Filing: 1951-07-31
•
Granted: 1957-06-18
•
Expires: 1971-07-31
Abstract
No abstract record available.
Inventors
- 👤 Roland G Daudelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:20
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86493; Y10T137/86879; Y10T137/86887
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1811890A
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US1707692A
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US1940990A
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US2441894A
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US2405439A
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US2360733A
Cited
US2557448A
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US2485504A
Cited
US2447651A
Cited
US2621885A
Cited
US2731031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |