US2697148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Undervoltage trip circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1950-09-29
•
Granted: 1954-12-14
•
Expires: 1970-09-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Slebodnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:42
CPC Classifications
H; H01; H01H; H01H83/00; H01H83/12; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650425A
Cited
US1122430A
Cited
US1633833A
Cited
US2047739A
Cited
US2083304A
Cited
US2154703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |