US2314693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1939-09-09
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Granted: 1943-03-23
•
Expires: 1959-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robert C Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/121; H01H31/00; H01H31/02; H01H31/12; H01H31/122; H01H31/127; H01H71/00; H01H71/10; H01H71/12; H01H71/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-03-22 | 1946-09-21 | 1947-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-22 | 1950-09-21 | 1951-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-22 | 1954-09-21 | 1955-03-23 | $7700.00 | Window Closed / Lapsed |