US2824922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit control device
Assignee: Westinghouse Electric Corp
•
Filing: 1953-05-11
•
Granted: 1958-02-25
•
Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Oliver S Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:31
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/40; H01H2071/407; H01H71/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2051380A
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US2170412A
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US2476022A
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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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |