US2660650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rheostat operating mechanism
Assignee: General Electric Co
•
Filing: 1951-02-27
•
Granted: 1953-11-24
•
Expires: 1971-02-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest F Goetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:11
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/14; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20207; Y10T74/20238; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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US2442289A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |