Patent US2952896A successfully refreshed from Google Patents.
US2952896A
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Fabrication techniques for transistors
Assignee: Texas Instruments Inc
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Filing: 1958-04-11
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Granted: 1960-09-20
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Expires: 1978-04-11
Abstract
No abstract record available.
Inventors
- 👤 Cornelison Boyd
- 👤 Jr Elmer A Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:27
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/40; H10P14/46; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/977
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |