US3018446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series energized transistor amplifier
Assignee: Westinghouse Electric Corp
•
Filing: 1956-09-14
•
Granted: 1962-01-23
•
Expires: 1976-09-14
Abstract
No abstract record available.
Inventors
- 👤 Brenton C Knudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2424893A
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US2631198A
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US2740847A
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US2811590A
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US2926307A
Cited
US2802071A
Cited
US2847583A
Cited
US2929997A
Cited
US2888525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |