US2913549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay switches
Assignee: General Electric Co
•
Filing: 1957-05-29
•
Granted: 1959-11-17
•
Expires: 1977-05-29
Abstract
No abstract record available.
Inventors
- 👤 Howell Edward Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30; H01H43/301; H01H43/302; H01H43/304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1692486A
Cited
US2484112A
Cited
US2638496A
Cited
US2658975A
Cited
US2740923A
Cited
US2776352A
Cited
US2769053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |