Patent EP0199272A2 successfully refreshed from Google Patents.
US2834083A
Expired / Lapsed
US
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Parachute canopy release
Assignee: Unisys Corp
•
Filing: 1953-05-29
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Granted: 1958-05-13
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Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 William H Newell
- 👤 Howard W Brevoort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:21
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/22; B64D17/38; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3401; Y10T24/3423; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45675; Y10T24/45686
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |