US2467760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1945-12-22
•
Granted: 1949-04-19
•
Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Leon R Ludwig
- 👤 Benjamin P Baker
- 👤 Winthrop M Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:37
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/88; H01H33/94; H01H33/96; H01H33/7015; H01H33/7023; H01H33/703; H01H33/98
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1899612A
Cited
US1922862A
Cited
US2061945A
Cited
US1973485A
Cited
US2160630A
Cited
GB486050A
Cited
US2391672A
Cited
US2279536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |