Patent US7226451B2 successfully refreshed from Google Patents.
US2679862A
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US
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Control apparatus
Assignee: Elsag Bailey Inc
•
Filing: 1950-08-31
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Granted: 1954-06-01
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Expires: 1970-08-31
Abstract
No abstract record available.
Inventors
- 👤 Harvard H Gorrie
- 👤 Jack F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:15
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8667
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2157240A
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US2410404A
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US2415417A
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US2588202A
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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) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |