Patent US2990460A successfully refreshed from Google Patents.
US2990460A
Expired / Lapsed
US
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Electric switch
Assignee: Electro Controls Inc
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Filing: 1959-09-03
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Granted: 1961-06-27
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Expires: 1979-09-03
Abstract
No abstract record available.
Inventors
- 👤 Sidney V Worth
- 👤 Robert C Rebling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:40
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/94; H; H01; H01H; H01H29/00; H01H29/02; H01H29/08; H01H29/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |