Patent FR1042859A successfully refreshed from Google Patents.
US2331131A
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Electric regulating circuit
Assignee: General Electric Co
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Filing: 1940-09-28
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Granted: 1943-10-05
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Expires: 1960-09-28
Abstract
No abstract record available.
Inventors
- 👤 Eimo E Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:27
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/96; H02J7/02; H02J7/04; H02J7/12
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) | 1946-10-04 | 1947-04-05 | 1947-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-04 | 1951-04-05 | 1951-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-04 | 1955-04-05 | 1955-10-05 | $7700.00 | Window Closed / Lapsed |