US2567236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1944-01-29
•
Granted: 1951-09-11
•
Expires: 1964-01-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Rawlins
- 👤 Harold H Fahnoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:43
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/38; H01H85/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1466423A
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US1730716A
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US2188792A
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US2167781A
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US2292088A
Cited
US2247702A
Cited
US2342310A
Cited
US2315618A
Cited
US2403121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |