US2729937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable flameholders for afterburners
Assignee: RTX Corp
•
Filing: 1951-03-20
•
Granted: 1956-01-10
•
Expires: 1971-03-20
Abstract
No abstract record available.
Inventors
- 👤 George F Hausmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:07
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18; F23R3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2529506A
Cited
FR922032A
Cited
US2707372A
Cited
GB648497A
Cited
US2632994A
Cited
US2508420A
Cited
US2569497A
Cited
US2572723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |