US3453435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Avalanche photodetector utilizing an a-c component of bias for suppressing microplasmas
Assignee: AT&T Inc
•
Filing: 1967-05-18
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Granted: 1969-07-01
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Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 Adolf Goetzberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/95; H10F77/953; H10F77/959; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |