US2777455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure control valve
Assignee: Individual
•
Filing: 1951-07-31
•
Granted: 1957-01-15
•
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
2026-10-25 19:51
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; F42; F42B; F42B19/00; F42B19/36; F42B19/38; F42B19/40; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/8593; Y10T137/86493; Y10T137/86558
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR724496A
Cited
US2148410A
Cited
US2441894A
Cited
US2485504A
Cited
US2447651A
Cited
US2698730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |