US2665708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure fluid operated by-pass and relief valve
Assignee: United Aircraft Products Inc
•
Filing: 1949-10-19
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Granted: 1954-01-12
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Expires: 1969-10-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin I Ghormley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/406; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7781; Y10T137/7835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2268227A
Cited
US2285323A
Cited
US2329001A
Cited
US2345306A
Cited
US2353577A
Cited
US2479359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |