US2650258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor photosensitive device
Assignee: RCA Corp
•
Filing: 1951-06-12
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Granted: 1953-08-25
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pantechochnikoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:36
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF SEMI-CONDUCTING GERMANIUM INCLUDING AN EXPOSED SURFACE, AN ELECTRICALLY INSULATING SUPPORT MEMBER IN WHICH SAID BODY, EXCEPT FOR SAID SURFACE, IS EMBEDDED, A LIGHT-TRANSMITTING FILM OF METAL UPON SAID SURFACE, AND AN ELECTRODE IN CONTACT WITH SAID FILM, SAID ELECTRODE COMPRISING A COATING LAYER OF LOW-RESISTANCE MATERIAL DISPOSED ON A PORTION OF THE SURFACE OF SAID FILM.
Claim 2
Dependent Claim
63 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF SEMI-CONDUCTING GERMANIUM INCLUDING AN EXPOSED SURFACE, AN ELECTRICALLY INSULATING SUPPORT MEMBER IN WHICH SAID BODY, EXCEPT FOR SAID SURFACE, IS EMBEDDED, A LIGHT-TRANSMITTING FILM OF METAL UPON SAID SURFACE, AND AN ELECTRODE IN CONTACT WITH SAID FILM, SAID ELECTRODE COMPRISING A COATING LAYER OF LOW-RESISTANCE MATERIAL DISPOSED ON A PORTION OF THE SURFACE OF SAID FILM.
References Cited (Backward Citations)
US1790736A
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US2172232A
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US2196830A
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US2331444A
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US2480113A
Cited
US2504627A
Cited
US2496432A
Cited
US2588254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |