Patent US2945990A successfully refreshed from Google Patents.
US2945990A
Expired / Lapsed
US
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Electric control circuit
Assignee: American Brake Shoe Co
•
Filing: 1956-02-23
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Granted: 1960-07-19
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Expires: 1976-02-23
Abstract
No abstract record available.
Inventors
- 👤 George M Hipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2257361A
Cited
US2404980A
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US2535785A
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US2579595A
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US2669686A
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US2760616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |