US2940024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor rectifiers
Assignee: RCA Corp
•
Filing: 1954-06-01
•
Granted: 1960-06-07
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Kurshan Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:56
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/60; G; G01; G01R; G01R31/00; G01R31/26; H10D1/00; H10D1/40; H10D99/00; H10P; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2430028A
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US2600997A
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US2765516A
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US2783197A
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US2781481A
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US2733390A
Cited
US2703855A
Cited
US2776920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |