US3474308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithic circuits having matched complementary transistors,sub-epitaxial and surface resistors,and n and p channel field effect transistors
Assignee: Texas Instruments Inc
•
Filing: 1966-12-13
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Granted: 1969-10-21
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Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 John W Kronlage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:29
CPC Classifications
H; H10; H10D; H10D1/00; H10D1/40; H10D1/43; H10D84/00; H10D84/01; H10D84/0107; H10D84/0112; H10D84/0119; H10D84/0121; H10D84/02; H10D84/03; H10D84/038; H10D84/40; H10D84/401; H10D84/403; H10D84/60; H10D84/641; H10D84/642; H10D84/67; H10D84/673; H10W; H10W74/00; H10W74/40; H10W74/43; Y; Y10; Y10S; Y10S148/00; Y10S148/037; Y10S148/049; Y10S148/085; Y10S148/151
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |