Patent US3069562A successfully refreshed from Google Patents.
US3069562A
Expired / Lapsed
US
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Highly reliable rectifier unit
Assignee: Digital Control Systems Inc
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Filing: 1959-08-24
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Granted: 1962-12-18
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Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Floyd G Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:11
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959513A
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US2123859A
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US2255378A
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US2444458A
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US2803703A
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US2813243A
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US2895099A
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US2874331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |