US2879405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor photo-electric devices
Assignee: RCA Corp
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Filing: 1953-06-29
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Granted: 1959-03-24
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Expires: 1973-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/221; H10F99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF SEMICONDUCTING MATERIAL CAPABLE OF FORMING A BARRIER LAYER AT A SURFACE THEREOF, A LIGHT-TRANSMITTING FILM OF A METAL FROM THE CLASS CONSISTING OF ANTIMONY, BISMUTH, AND BERYLLIUM ON SAID SURFACE OF SAID MATERIAL, SAID FILM HAVING PREDETERMINED RESISTIVITY CHARACTERISTICS AND ADAPTED TO RECEIVE LIGHT DIRECTED TOWARDS A PORTION OF ITS SURFACE, A PAIR OF SPACED ELECTRODES SECURED TO SAID METAL FILM, SAID ELECTRODES BEING CONNECTED IN PARALLEL, THE RESISTANCE
Claim 2
Dependent Claim
76 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF SEMICONDUCTING MATERIAL CAPABLE OF FORMING A BARRIER LAYER AT A SURFACE THEREOF, A LIGHT-TRANSMITTING FILM OF A METAL FROM THE CLASS CONSISTING OF ANTIMONY, BISMUTH, AND BERYLLIUM ON SAID SURFACE OF SAID MATERIAL, SAID FILM HAVING PREDETERMINED RESISTIVITY CHARACTERISTICS AND ADAPTED TO RECEIVE LIGHT DIRECTED TOWARDS A PORTION OF ITS SURFACE, A PAIR OF SPACED ELECTRODES SECURED TO SAID METAL FILM, SAID ELECTRODES BEING CONNECTED IN PARALLEL, THE RESISTANCE
References Cited (Backward Citations)
US2622117A
Cited
US2629802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |