US2927423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of screeching combustion in jet engines
Assignee: Individual
•
Filing: 1956-02-09
•
Granted: 1960-03-08
•
Expires: 1976-02-09
Abstract
No abstract record available.
Inventors
- 👤 Henryk U Wisniowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:17
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18; F23R3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2607191A
Cited
US2622396A
Cited
US2714287A
Cited
US2697910A
Cited
US2720754A
Cited
US2693083A
Cited
US2771743A
Cited
US2780916A
Cited
US2682747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |