US2647366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for preventing ice formation in jet propulsion and gas turbine engines
Assignee: Individual
•
Filing: 1946-06-24
•
Granted: 1953-08-04
•
Expires: 1966-06-24
Abstract
No abstract record available.
Inventors
- 👤 William J Mccann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:14
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1539717A
Cited
US1977538A
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US2339629A
Cited
US2477798A
Cited
US2404275A
Cited
US2344835A
Cited
US2508288A
Cited
US2474068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |