Patent US3390285A successfully refreshed from Google Patents.
US3390285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for varying the operating point of a transistor with constant dissipation
Assignee: US Philips Corp
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Filing: 1965-02-12
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Granted: 1968-06-25
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Schoen Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:53
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/26; G01R31/2607; G01R31/2608; H; H03; H03F; H03F1/00; H03F1/30; H03F1/302; H03F1/52
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |