Patent US3513022A successfully refreshed from Google Patents.
US3513022A
Expired / Lapsed
US
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Method of fabricating semiconductor devices
Assignee: RCA Corp
•
Filing: 1967-04-26
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Granted: 1970-05-19
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Expires: 1987-04-26
Abstract
No abstract record available.
Inventors
- 👤 Edgar T Casterline
- 👤 Ronald Rosenzweig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:38
CPC Classifications
H; H10; H10W; H10W99/00; H10P; H10P95/00; H10W20/00; H10W20/40; Y; Y10; Y10S; Y10S148/00; Y10S148/028; Y10S148/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3054709A
Cited
US3046176A
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US2978804A
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US3247428A
Cited
US3258898A
Cited
US3345210A
Cited
US3436611A
Cited
US3377513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |