Patent US2981873A successfully refreshed from Google Patents.
US2981873A
Expired / Lapsed
US
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Semiconductor device
Assignee: Sarkes Tarzian Inc
•
Filing: 1957-05-02
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Granted: 1961-04-25
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Expires: 1977-05-02
Abstract
No abstract record available.
Inventors
- 👤 Eannarino George
- 👤 Jr George B Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:00
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/40; H10W74/00; H10W74/10; H10W74/131; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2688110A
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US2745044A
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US2735050A
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US2809332A
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US2725505A
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US2862158A
Cited
US2752541A
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US2906932A
Cited
US2852722A
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US2830238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |