US3514846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating a planar avalanche photodiode
Assignee: AT&T Inc
•
Filing: 1967-11-15
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Granted: 1970-06-02
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Expires: 1987-11-15
Abstract
No abstract record available.
Inventors
- 👤 William T Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:47
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/225; H10D; H10D99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/036; Y10S148/043; Y10S148/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2761945A
Cited
US2914715A
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US3261727A
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US3203840A
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US3345221A
Cited
US3319311A
Cited
US3289267A
Cited
US3416044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |