Patent US2654641A successfully refreshed from Google Patents.
US2654641A
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Electrical control device
Assignee: CHICAGO TELEPHONE SUPPLY Corp
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Filing: 1949-09-15
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Granted: 1953-10-06
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Expires: 1969-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph G Veatch
- 👤 Arthur M Daily
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:09
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18232; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2045; Y10T74/20474
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US696534A
Cited
US2069440A
Cited
US2134870A
Cited
US2177126A
Cited
US2406933A
Cited
US2519756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |