Patent US3723831A successfully refreshed from Google Patents.
US3723831A
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Indium antimonide infrared ray detector
Assignee: JM Huber Corp
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Filing: 1970-12-04
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Granted: 1973-03-27
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Expires: 1990-12-04
Abstract
Abstract The invention is an indium antimonide infrared ray detector which is operable efficiently (i.e., with a maximum black body detectivity) over a wide range of temperatures and at much higher temperatures than heretofore attainable.
Inventors
- 👤 C Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:58
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F55/00; H10F55/10; H10F99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A detector as claimed in claim 1 in which the n-type material comprises a substrate of indium antimonide and said p-region contains a metal selected from Group II B of the periodic table consisting of zinc or cadmium.
Claim 2
Dependent Claim
24 words
A detector as claimed in claim 2 in which the n-type material comprises a crystal containing indium, antimony and tellurium as an n-type dopant.
References Cited (Backward Citations)
US3554818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |