US2947496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet propelled aircraft
Assignee: Individual
•
Filing: 1955-09-28
•
Granted: 1960-08-02
•
Expires: 1975-09-28
Abstract
No abstract record available.
Inventors
- 👤 Archie L Leggett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:40
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0058; B64C39/00; B64C39/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE517359A
Cited
US1038168A
Cited
US1660257A
Cited
US2054610A
Cited
US2377835A
Cited
US2567392A
Cited
FR1070544A
Cited
US2730312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |