US2642079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic shutoff valve
Assignee: Curtiss Wright Corp
•
Filing: 1947-01-08
•
Granted: 1953-06-16
•
Expires: 1967-01-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Wishart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:39
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/24; F16K17/28; B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/32; Y; Y10; Y10T; Y10T137/00; Y10T137/3367
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |