Patent US2953690A successfully refreshed from Google Patents.
US2953690A
Expired / Lapsed
US
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Photosensitive cells, radiation filters and semiconductor materials for use in such cells and filters
Assignee: National Research Development Corp UK
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Filing: 1958-09-03
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Granted: 1960-09-20
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Expires: 1978-09-03
Abstract
No abstract record available.
Inventors
- 👤 Lawson William Donald
- 👤 Young Alexander Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:18
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D62/86; H10D62/864; C; C22; C22C; C22C28/00; H01; H01B; H01B1/00; H10F; H10F30/00; H10P; H10P10/00; H10P95/00; H10P95/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PHOTOSENSITIVE CELL CONSISTING OF IN COMBINATION A MASS OF PHOTOSENSITIVE SEMICONDUCTOR MATERIAL ESSENTIALLY COMPRISING A TERNARY ALLOY OF TELLURIUM, CADMIUM, AND MERCURY, 50 ATOMIC PERCENT OF SAID ALLOY BEING TELLURIUM, AND SAID CADMIUM AND MERCURY BEING IN AN ATOMIC PROPORTION PROVIDING A PREDETERMINED ABSORPTION-WAVELENGTH CHARACTERISTIC, AND CURRENT CARRYING CONNECTIONS TO THE MASS.
Claim 2
Dependent Claim
53 words
A PHOTOSENSITIVE CELL CONSISTING OF IN COMBINATION A MASS OF PHOTOSENSITIVE SEMICONDUCTOR MATERIAL ESSENTIALLY COMPRISING A TERNARY ALLOY OF TELLURIUM, CADMIUM, AND MERCURY, 50 ATOMIC PERCENT OF SAID ALLOY BEING TELLURIUM, AND SAID CADMIUM AND MERCURY BEING IN AN ATOMIC PROPORTION PROVIDING A PREDETERMINED ABSORPTION-WAVELENGTH CHARACTERISTIC, AND CURRENT CARRYING CONNECTIONS TO THE MASS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |