Patent US3431150A successfully refreshed from Google Patents.
US3431150A
Expired / Lapsed
US
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Process for implanting grids in semiconductor devices
Assignee: United States Department of the Air Force
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Filing: 1966-10-07
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Granted: 1969-03-04
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Expires: 1986-10-07
Abstract
No abstract record available.
Inventors
- 👤 Russell P Dolan Jr
- 👤 Bobby L Buchanan
- 👤 Sven A Roosild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:41
CPC Classifications
H; H10; H10P; H10P95/00; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H01J37/3171; H10D; H10D99/00; H10P30/00; H10P30/20; H10P30/22; Y; Y10; Y10S; Y10S257/00; Y10S257/919
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |