Patent US2947499A successfully refreshed from Google Patents.
US2947499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet propulsion for aircraft and control means therefor
Assignee: Individual
•
Filing: 1955-09-27
•
Granted: 1960-08-02
•
Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Douglas Aubrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:06
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/002; B; B64; B64C; B64C23/00; B64C23/005; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0066; B64C29/0091
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
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 |