US3051876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic transistor
Assignee: University of Illinois at Urbana-Champaign
•
Filing: 1958-05-14
•
Granted: 1962-08-28
•
Expires: 1978-05-14
Abstract
No abstract record available.
Inventors
- 👤 Bardeen John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:13
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1439526A
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FR584723A
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US2005279A
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US1948864A
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US2685025A
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US2585947A
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US2665845A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |