US2474762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: Individual
•
Filing: 1945-05-26
•
Granted: 1949-06-28
•
Expires: 1965-05-26
Abstract
No abstract record available.
Inventors
- 👤 Edward V Sundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/30; H01H9/00; H01H9/02; H01H9/04; H01H2009/048; H01H71/00; H01H71/08; H01H2071/088; H01H9/20; H01H9/28; H01H9/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US450292A
Cited
US1359298A
Cited
US1614223A
Cited
US1772291A
Cited
US1614169A
Cited
US1704379A
Cited
US1688006A
Cited
US1706518A
Cited
US2348393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |