US2491104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1946-01-17
•
Granted: 1949-12-13
•
Expires: 1966-01-17
Abstract
No abstract record available.
Inventors
- 👤 John W Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/24; F16K17/28; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727; Y10T137/7781; Y10T137/7784; Y10T137/7786; Y10T137/7837; Y10T137/7869; Y10T137/7875
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US524393A
Cited
US549224A
Cited
US598935A
Cited
US810746A
Cited
US972338A
Cited
FR485303A
Cited
US1394332A
Cited
US1924733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |