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US3426985A
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US
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Detachable fixing device for a parachute canopy permitting the practically immediate release of said canopy
Assignee: Etudes et Fabrications Aeronautiques SA
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Filing: 1967-03-27
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Granted: 1969-02-11
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Marcel H Pravaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:20
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/22; B64D17/38; B64D17/383; B64D17/30; B64D17/32; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/31; Y10S24/35; Y10S24/36; Y10T; Y10T24/00; Y10T24/34; Y10T24/3401; Y10T24/3403; Y10T24/3405; Y10T24/3407; Y10T24/45; Y10T24/45005; Y10T24/4501
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |