US2997409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of production of lead selenide photodetector cells
Assignee: Raytheon Co
•
Filing: 1959-11-04
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Granted: 1961-08-22
•
Expires: 1979-11-04
Abstract
No abstract record available.
Inventors
- 👤 Bob N Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:48
CPC Classifications
H; H10; H10F; H10F71/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
IN A METHOD FOR THE PREPARATION OF AN INFRARED DETECTOR CELL INCLUDING A SENSITIZATION STEP INVOLING OXIDATION OF A LEAD SELELIDE LAYER, THE IMPROVEMENT COMPRISING TREATING THE LEAD SELENIDE LAYER WITH SELENOUREA.
Claim 2
Dependent Claim
32 words
IN A METHOD FOR THE PREPARATION OF AN INFRARED DETECTOR CELL INCLUDING A SENSITIZATION STEP INVOLING OXIDATION OF A LEAD SELELIDE LAYER, THE IMPROVEMENT COMPRISING TREATING THE LEAD SELENIDE LAYER WITH SELENOUREA.
References Cited (Backward Citations)
US2408116A
Cited
US2898240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |