Patent US3168648A successfully refreshed from Google Patents.
US3168648A
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US
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Pulse generator employing cascade connected transistors for switching direct current power sources across output transformers
Assignee: GTE Sylvania Inc
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Filing: 1960-03-11
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Granted: 1965-02-02
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Expires: 1980-03-11
Abstract
No abstract record available.
Inventors
- 👤 Elmer B Clausen
- 👤 Guckel Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:20
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/12; H03K17/00; H03K17/10; H03K17/51; H03K17/56; H03K17/72; H03K17/725; H03K5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2726331A
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US2857518A
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US2835829A
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US2933692A
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US2953754A
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US2941119A
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US3030566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |