US2492653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air propeller
Assignee: Bendix Aviation Corp
•
Filing: 1946-04-11
•
Granted: 1949-12-27
•
Expires: 1966-04-11
Abstract
No abstract record available.
Inventors
- 👤 Royal J Reek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:53
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/32; B64C11/34; B64C11/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1386490A
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US1955688A
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DE602029C
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US1788263A
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US1920674A
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US1979616A
Cited
GB452635A
Cited
US2099922A
Cited
US2029503A
Cited
FR796064A
Cited
US2236201A
Cited
US2425938A
Cited
US2452444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |