US3523190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mos photodetector having dual gate electrodes
Assignee: AT&T Inc
•
Filing: 1968-10-17
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Granted: 1970-08-04
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Expires: 1988-10-17
Abstract
No abstract record available.
Inventors
- 👤 Adolf Goetzberger
- 👤 Edward H Nicollian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/28; H10F30/2823; H10D; H10D44/00; H10D44/40; H10D44/45; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3459944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |