US2921501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft load-release device
Assignee: Societe Nationale des Constructions Aeronautiques du Sud Oest SNCASO
•
Filing: 1956-06-07
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Granted: 1960-01-19
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Expires: 1976-06-07
Abstract
No abstract record available.
Inventors
- 👤 Parot Jean Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:03
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/06; B; B64; B64D; B64D1/00; B64D1/02; B64D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE730654C
Cited
US2335090A
Cited
US2356155A
Cited
US2585030A
Cited
US2604281A
Cited
GB691256A
Cited
US2634656A
Cited
FR1095000A
Cited
US2807193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |