Patent US2606729A successfully refreshed from Google Patents.
US2606729A
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Delay opening parachute pack and pneumatic releasing assembly therefor
Assignee: Reconstruction Finance Corp
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Filing: 1949-05-25
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Granted: 1952-08-12
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Expires: 1969-05-25
Abstract
No abstract record available.
Inventors
- 👤 Leonard P Frieder
- 👤 Walter S Finken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:31
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8776; Y10T83/8779
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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |