Patent US2136248A successfully refreshed from Google Patents.
US2136248A
Expired / Lapsed
US
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Electrical regulation
Assignee: General Electric Co
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Filing: 1937-01-30
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Granted: 1938-11-08
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Expires: 1957-01-30
Abstract
No abstract record available.
Inventors
- 👤 Willard J Mclachlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:07
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/24; G05F1/247
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) | 1941-11-07 | 1942-05-09 | 1942-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-07 | 1946-05-09 | 1946-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-07 | 1950-05-09 | 1950-11-08 | $7700.00 | Window Closed / Lapsed |