US3475666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated semiconductor switch system
Assignee: Individual
•
Filing: 1966-08-15
•
Granted: 1969-10-28
•
Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jearld L Hutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:20
CPC Classifications
H; H10; H10D; H10D18/00; H10D18/80; H10D18/241; H10D84/00; H10D84/60; H10D84/676; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB910656A
Cited
GB945249A
Cited
US3264518A
Cited
US3317746A
Cited
US3275909A
Cited
US3274463A
Cited
US3328652A
Cited
US3346785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |