US3396059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of growing silicon carbide p-nu junction electroluminescing diodes using a modified travelling solvent method
Assignee: National Research Corp
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Filing: 1964-09-14
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Granted: 1968-08-06
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Rosario P Giammanco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:56
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10; H10; H10H; H10H20/00; H10H20/01; H10H20/011; H10H20/014; Y; Y10; Y10S; Y10S148/00; Y10S148/107; Y10S148/148; Y10S438/00; Y10S438/929; Y10S438/931
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |