Patent US3486951A successfully refreshed from Google Patents.
US3486951A
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US
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Method of manufacturing semiconductor devices
Assignee: Corning Glass Works
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Filing: 1967-06-16
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Granted: 1969-12-30
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Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Norby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:02
CPC Classifications
H; H10; H10P; H10P32/00; H10P32/10; H10P32/19; H10P32/14; H10P32/1408; H10P32/141; H10P32/17; H10P32/171; Y; Y10; Y10S; Y10S252/00; Y10S252/95; Y10S438/00; Y10S438/914; Y10S438/923
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |