US2771528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal overload switch
Assignee: General Electric Co
•
Filing: 1954-02-25
•
Granted: 1956-11-20
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Expires: 1974-02-25
Abstract
No abstract record available.
Inventors
- 👤 Don E Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
H; H01; H01H; H01H81/00; H01H81/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1511352A
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US1621056A
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US2044147A
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US2611855A
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US2587789A
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US2647189A
Cited
US2651696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |