US2651744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device
Assignee: MCQUAYNORRIS Manufacturing Co
•
Filing: 1949-02-02
•
Granted: 1953-09-08
•
Expires: 1969-02-02
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Acklin
- 👤 Huel E Perrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:52
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/10; H01F7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2114961A
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US2155358A
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US2204841A
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US2098195A
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US2098196A
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US2098197A
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US2223986A
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US2291599A
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US2324642A
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US2311110A
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US2343806A
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US2458123A
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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) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |