US3436809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making semiconductor devices
Assignee: International Standard Electric Corp
•
Filing: 1965-09-29
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Granted: 1969-04-08
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Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Robert David Peacock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:49
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10D; H10D99/00; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/69; H10P14/692; H10P14/6921; H10P14/69215; Y; Y10; Y10S; Y10S148/00; Y10S148/037; Y10S148/049; Y10S148/151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2792540A
Cited
US3044147A
Cited
US2981877A
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US3199002A
Cited
US3212162A
Cited
US3270256A
Cited
US3266127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |