Patent US3441815A successfully refreshed from Google Patents.
US3441815A
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Semiconductor structures for integrated circuitry and method of making the same
Assignee: Westinghouse Electric Corp
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Filing: 1966-09-14
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Granted: 1969-04-29
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Expires: 1986-09-14
Abstract
No abstract record available.
Inventors
- 👤 Larry J Pollock
- 👤 Wallace N Shaunfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:51
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10D84/617; H10D84/01; H10D84/0112; H10D84/02; H10D84/03; H10D84/038; H10D99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/037; Y10S148/05; Y10S148/062; Y10S148/085; Y10S438/00; Y10S438/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3094633A
Cited
US3283170A
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US3260902A
Cited
US3320485A
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US3333166A
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US3312882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |