Patent US2769104A successfully refreshed from Google Patents.
Patent US3065799A successfully refreshed from Google Patents.
US3065799A
Expired / Lapsed
US
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Rotary wing aircraft
Assignee: Individual
•
Filing: 1958-04-21
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Granted: 1962-11-27
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Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Lewis C Mccarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:47
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1786545A
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US2226978A
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US2172334A
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US2120168A
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US2330803A
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US2630709A
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US2624531A
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US2614636A
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US2626766A
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US2717043A
Cited
US2847173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |