US2951631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine accessory drive
Assignee: Fairchild Engine and Airplane Corp
•
Filing: 1956-01-25
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Granted: 1960-09-06
•
Expires: 1976-01-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:16
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/28; F02; F02C; F02C7/00; F02C7/32; F04; F04D; F04D25/00; F04D25/02
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) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |