Patent US2796774A successfully refreshed from Google Patents.
US2796774A
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US
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Control system ratio shift mechanism
Assignee: North American Aviation Corp
•
Filing: 1952-05-03
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Granted: 1957-06-25
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Expires: 1972-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Garland P Peed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:07
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20558; Y10T74/20576; Y10T74/20582; Y10T74/206; Y10T74/20636; Y10T74/20672; Y10T74/2069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US304673A
Cited
US503385A
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US737541A
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US1020261A
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US2205610A
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US2276702A
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US2338379A
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US2601458A
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US2373739A
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US2511446A
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US2478033A
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GB605286A
Cited
US2510122A
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US2685422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |