US3533862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming semiconductor regions in an epitaxial layer
Assignee: Texas Instruments Inc
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Filing: 1967-08-21
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Granted: 1970-10-13
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Paul S Gleim
- 👤 Edger Clayton Teague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
H; H10; H10P; H10P95/00; H10P32/00; Y; Y10; Y10S; Y10S148/00; Y10S148/007; Y10S438/00; Y10S438/914; Y10S438/916; Y10S438/925
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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |