Patent US2465703A successfully refreshed from Google Patents.
US2465703A
Expired / Lapsed
US
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Aircraft sustaining rotor
Assignee: Individual
•
Filing: 1943-10-07
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Granted: 1949-03-29
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Expires: 1963-10-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred W Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:13
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/22; B64C27/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1616123A
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US1793651A
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US1904923A
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US2021470A
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US1922866A
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US2094105A
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US2008843A
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US2110563A
Cited
US2108245A
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US2216163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |