US2622167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1946-12-31
•
Granted: 1952-12-16
•
Expires: 1966-12-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Rawlins
- 👤 James M Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:41
CPC Classifications
H; H01; H01H; H01H75/00; H01H75/02; H01H75/04; Y; Y10; Y10T; Y10T74/00; Y10T74/11; Y10T74/18; Y10T74/18992
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US894645A
Cited
US1012081A
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US1711501A
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US2073286A
Cited
US2117891A
Cited
US2274135A
Cited
US2333604A
Cited
US2429069A
Cited
US2488441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |