US2525798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shockless parachute
Assignee: Individual
•
Filing: 1948-03-08
•
Granted: 1950-10-17
•
Expires: 1968-03-08
Abstract
No abstract record available.
Inventors
- 👤 Hattan Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:27
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/22; B64D17/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB128669A
Cited
US1266508A
Cited
US1771261A
Cited
US2267791A
Cited
US2310359A
Cited
US2392270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |