US3431636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making diffused semiconductor devices
Assignee: Texas Instruments Inc
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Filing: 1965-01-28
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Granted: 1969-03-11
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Doyle S Granberry
- 👤 Robert L Mccalip
- 👤 Byron K Lovelace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:42
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/401; C23C16/402; F; F23; F23D; F23D14/00; F23D14/12; F23D14/125; H10D; H10D99/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/043; Y10S148/049; Y10S148/118; Y10S148/145; Y10S148/151
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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |