US2972259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stored energy operating mechanism for switches
Assignee: General Electric Co
•
Filing: 1959-12-31
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Granted: 1961-02-21
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Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 John A Favre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:37
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/30; G; G05; G05G; G05G25/00; G05G2700/00; G05G2700/12; G05G2700/14; H01H3/60; H01H3/605; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2447137A
Cited
US2910557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |