Patent US4256998A successfully refreshed from Google Patents.
US2848613A
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US
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Transistor blocking oscillator
Assignee: Westinghouse Electric Corp
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Filing: 1955-12-29
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Granted: 1958-08-19
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Elberson D Green
- 👤 Martin G Woolfson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:18
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/30; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/50; H03K4/54
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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |