Patent US2941125A successfully refreshed from Google Patents.
US2941125A
Expired / Lapsed
US
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Driver for inductive loads
Assignee: MONOGRAM PREC IND Inc
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Filing: 1957-05-07
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Granted: 1960-06-14
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Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Donald K Lippincott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:16
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/02; H01; H01P; H01P1/00; H01P1/32; H03K17/00; H03K17/51; H03K17/54; Y; Y10; Y10S; Y10S425/00; Y10S425/811
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |