US2822507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating circuit for energizing variable resistance loads
Assignee: General Electric Co
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Filing: 1952-07-18
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Granted: 1958-02-04
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Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Marvin J Mulhern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/52; H03F1/54; H03F1/544; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |