US2421152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load coupling device for parachutes
Assignee: GQ Parachutes Ltd
•
Filing: 1942-10-05
•
Granted: 1947-05-27
•
Expires: 1962-10-05
Abstract
No abstract record available.
Inventors
- 👤 Jones George Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/22; B64D17/38; B64D17/383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1507706A
Cited
US1845466A
Cited
US2057699A
Cited
US2131445A
Cited
US2234752A
Cited
US2270317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-26 | 1950-11-25 | 1951-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-26 | 1954-11-25 | 1955-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-26 | 1958-11-25 | 1959-05-27 | $7700.00 | Window Closed / Lapsed |