US2884497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: General Electric Co
•
Filing: 1957-08-22
•
Granted: 1959-04-28
•
Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Harry M Steven
- 👤 Raymond W Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:47
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/74; H01H71/7418; H01H71/10; H01H71/12; H01H71/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2069305A
Cited
US2486300A
Cited
US2491959A
Cited
US2574093A
Cited
US2686278A
Cited
US2547131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |