Patent US3053267A successfully refreshed from Google Patents.
US3053267A
Expired / Lapsed
US
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Controllable pitch propeller
Assignee: MCCAULEY IND CORP
•
Filing: 1957-12-04
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Granted: 1962-09-11
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Expires: 1977-12-04
Abstract
No abstract record available.
Inventors
- 👤 Walter E Burnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:13
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/38; B64C11/40; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1135
Claims Analysis
Total Claims: 0
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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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |