US2741672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual axis rotatable blade switch
Assignee: General Electric Co
•
Filing: 1952-01-03
•
Granted: 1956-04-10
•
Expires: 1972-01-03
Abstract
No abstract record available.
Inventors
- 👤 Howard R Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
H; H01; H01H; H01H31/00; H01H31/26; H01H31/28; H01H2031/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2234563A
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US2242092A
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CH220579A
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US2284742A
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US2328283A
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US2328171A
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US2359056A
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US2363307A
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US2521484A
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US2531165A
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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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |