US2417728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1942-10-28
•
Granted: 1947-03-18
•
Expires: 1962-10-28
Abstract
No abstract record available.
Inventors
- 👤 Albert H Baylis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:57
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470161A
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US675865A
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US738823A
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US917542A
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US1522262A
Cited
GB196305A
Cited
US1816429A
Cited
US1764819A
Cited
US1764375A
Cited
US2162511A
Cited
GB522303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |