US2617477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stand-by fuel feed control with hydraulic switching
Assignee: Simmonds Aerocessories Inc
•
Filing: 1948-08-05
•
Granted: 1952-11-11
•
Expires: 1968-08-05
Abstract
No abstract record available.
Inventors
- 👤 Isreeli Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:58
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/46; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2663; Y10T137/2665; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2229132A
Cited
US2440262A
Cited
US2394506A
Cited
US2464802A
Cited
FR918123A
Cited
US2431345A
Cited
US2440371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |