Patent US2111423A successfully refreshed from Google Patents.
US2111423A
Expired / Lapsed
US
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Speed regulation
Assignee: General Electric Co
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Filing: 1936-04-08
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Granted: 1938-03-15
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Expires: 1956-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Given
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/16; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/924; Y10S388/925
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) | 1941-03-14 | 1941-09-13 | 1942-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-03-14 | 1945-09-13 | 1946-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-03-14 | 1949-09-13 | 1950-03-15 | $7700.00 | Window Closed / Lapsed |