US3434894A
Expired / Lapsed
US
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Fabricating solid state devices by ion implantation
Assignee: Ion Physics Corp
•
Filing: 1965-10-06
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Granted: 1969-03-25
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Expires: 1985-10-06
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Gale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H01J37/3171; C; C23; C23C; C23C14/00; C23C14/22; C23C14/48; H10; H10P; H10P95/00; H01J2237/00; H01J2237/30; H01J2237/317; H01J2237/31701; H01J2237/31706; H01J2237/3171; H01J2237/31711
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2803569A
Cited
US2842466A
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US2787564A
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US2902583A
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US3179542A
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US3340601A
Cited
US3328210A
Cited
US3326176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |