US2687263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parachute pack
Assignee: FRIEDER
•
Filing: 1951-03-09
•
Granted: 1954-08-24
•
Expires: 1971-03-09
Abstract
No abstract record available.
Inventors
- 👤 Leonard P Frieder
- 👤 Walter S Finken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:32
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/40; B64D17/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1165891A
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US1896000A
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US2146990A
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US2337168A
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US2347205A
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US2389578A
Cited
US2439318A
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US2467024A
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US2577737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |