US3133336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device fabrication
Assignee: International Business Machines Corp
•
Filing: 1959-12-30
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Granted: 1964-05-19
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 John C Marinace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:49
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/01; H10D86/00; H10D86/01; H10P; H10P14/00; H10P14/20; H10P14/24; H10P14/27; H10P14/271; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/026; Y10S148/085; Y10S148/106; Y10S148/135; Y10S257/00; Y10S257/926; Y10S438/00; Y10S438/942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2837703A
Cited
US2692839A
Cited
US2695852A
Cited
US2836878A
Cited
US2813326A
Cited
US2863105A
Cited
US2929750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |