Patent US2334544A successfully refreshed from Google Patents.
Patent US3412295A successfully refreshed from Google Patents.
US3412295A
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Monolithic structure with three-region complementary transistors
Assignee: Sprague Electric Co
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Filing: 1965-10-19
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Granted: 1968-11-19
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Alan B Grebene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/67; H10D84/673; H10D84/01; H10D84/0112; H10D84/0114; H10D84/02; H10D84/03; H10D84/038; H10D99/00; H10W; H10W10/00; H10W10/01; H10W10/011; H10W10/019; H10W10/10; Y; Y10; Y10S; Y10S148/00; Y10S148/085
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |