US2669629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1950-07-22
•
Granted: 1954-02-16
•
Expires: 1970-07-22
Abstract
No abstract record available.
Inventors
- 👤 John B Macneili
- 👤 Winthrop M Leeds
- 👤 Benjamin P Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:33
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/98; H01H33/02; H01H33/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1123870A
Cited
US2102768A
Cited
GB500731A
Cited
US2201881A
Cited
US2467760A
Cited
US2495192A
Cited
US2477788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |