US2669663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor photoconducting device
Assignee: RCA Corp
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Filing: 1951-11-30
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Granted: 1954-02-16
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 Pankove Jacques Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:07
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/227; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF SEMI-CONDUCTING MATERIAL CAPABLE OF FORMING A BARRIER LAYER AT A SURFACE THEREOF AND HAVING ON SAID SURFACE A SEMI-TRANSPARENT FILM OF A METAL FROM THE CLASS CONSISTING OF ANTIMONY, BISMUTH, AND BERYLLIUM, AN ELECTRODE IN CONTACT WITH SAID BODY, ANOTHER ELECTRODE IN CONTACT WITH SAID FILM, A SOURCE OF BIAS VOLTAGE AND MEANS CONNECTING SAID SOURCE ACROSS SAID ELECTRODES.
Claim 2
Dependent Claim
66 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF SEMI-CONDUCTING MATERIAL CAPABLE OF FORMING A BARRIER LAYER AT A SURFACE THEREOF AND HAVING ON SAID SURFACE A SEMI-TRANSPARENT FILM OF A METAL FROM THE CLASS CONSISTING OF ANTIMONY, BISMUTH, AND BERYLLIUM, AN ELECTRODE IN CONTACT WITH SAID BODY, ANOTHER ELECTRODE IN CONTACT WITH SAID FILM, A SOURCE OF BIAS VOLTAGE AND MEANS CONNECTING SAID SOURCE ACROSS SAID ELECTRODES.
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) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |