US3510733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductive crystals of silicon carbide with improved chromium-containing electrical contacts
Assignee: General Electric Co
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Filing: 1966-12-23
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Granted: 1970-05-05
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Arrigo Addamiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:30
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/83; H10H20/832; H01; H01B; H01B1/00; H10D; H10D64/00; H10D64/60; H10D64/62; H10P; H10P95/00; Y; Y10; Y10S; Y10S438/00; 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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |