US2437701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft propeller
Assignee: Individual
•
Filing: 1943-06-07
•
Granted: 1948-03-16
•
Expires: 1963-06-07
Abstract
No abstract record available.
Inventors
- 👤 Howard M Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:36
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1483536A
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US1726726A
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US2127687A
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FR776377A
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US2117891A
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DE703319C
Cited
US2164489A
Cited
US2133593A
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US2233822A
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US2271435A
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US2225408A
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CH217669A
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US2356772A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |