US3447235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isolated cathode array semiconductor
Assignee: Raytheon Co
•
Filing: 1967-07-21
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Granted: 1969-06-03
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Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 Warren C Rosvold
- 👤 Wilhelm H Legat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:02
CPC Classifications
H; H10; H10P; H10P50/00; H10P50/69; H10P50/691; H10P95/00; H10W; H10W10/00; H10W10/01; H10W10/021; H10W10/20; Y; Y10; Y10S; Y10S148/00; Y10S148/085; Y10S148/115; Y10S148/122; Y10S438/00; Y10S438/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3189973A
Cited
US3288662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |