US3423651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microcircuit with complementary dielectrically isolated mesa-type active elements
Assignee: Raytheon Co
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Filing: 1966-01-13
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Granted: 1969-01-21
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Expires: 1986-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm H Legat
- 👤 Lewis K Russell
- 👤 Warren C Rosvold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/67; H10D84/673; C; C23; C23F; C23F1/00; C23F1/02; H10D84/01; H10D84/0112; H10D84/02; H10D84/03; H10D84/038; H10D99/00; H10P; H10P50/00; H10P50/60; H10P50/64; H10P50/642; H10P50/644; H10P50/69; H10P50/691; H10P50/692; H10P50/693; H10P90/00; H10P90/19; H10P90/1904; H10P90/1906; H10W; H10W10/00; H10W10/01; H10W10/061; H10W10/10; H10W10/181; H10W10/021; H10W10/20; Y; Y10; Y10S; Y10S148/00; Y10S148/051; Y10S148/085; Y10S148/115; Y10S148/122; Y10S148/145
Claims Analysis
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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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |