US3445926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of semiconductor devices by use of ion beam implantation
Assignee: Electro Optical Systems Inc
•
Filing: 1967-02-28
•
Granted: 1969-05-27
•
Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 David B Medved
- 👤 Louis A Garasi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
H; H10; H10P; H10P30/00; H10P30/20; H10P30/22; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H01J37/3171; H01J37/3172; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/914; Y10S438/918; Y10S438/942; Y10S438/945
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3080481A
Cited
US3098954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |