Patent US3484854A successfully refreshed from Google Patents.
US3484854A
Expired / Lapsed
US
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Processing semiconductor materials
Assignee: Westinghouse Electric Corp
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Filing: 1966-10-17
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Granted: 1969-12-16
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Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Elden D Wolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:10
CPC Classifications
H; H10; H10P; H10P32/00; H10P32/10; H10P32/14; H10P32/17; H10P32/174; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2802760A
Cited
US2846340A
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US3266952A
Cited
US3245002A
Cited
US3255056A
Cited
US3298879A
Cited
US3352725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |