Patent US2383973A successfully refreshed from Google Patents.
US2383973A
Expired / Lapsed
US
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Electric vacuum switch
Assignee: General Electric Co
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Filing: 1943-03-27
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Granted: 1945-09-04
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Expires: 1963-03-27
Abstract
No abstract record available.
Inventors
- 👤 Jr William L Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:27
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H33/6664; H01H1/00; H01H1/64; H01H1/66; H01J; H01J19/00; H01J19/42; H01J21/00; H01J21/36; H01J2893/00; H01J2893/0001; H01J2893/0002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-09-03 | 1949-03-05 | 1949-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-03 | 1953-03-05 | 1953-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-03 | 1957-03-05 | 1957-09-04 | $7700.00 | Window Closed / Lapsed |