US2884508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin metal films and method of making same
Assignee: Dresser Industries Inc
•
Filing: 1956-10-01
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Granted: 1959-04-28
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 Akos Z Czipott
- 👤 Acey L Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:18
CPC Classifications
H; H10; H10F; H10F30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PHOTOCONDUCTIVE CELL COMPRISING ELECTRICALLY CONDUCTIVE FILMS WITH MARGINAL PORTIONS HAVING OHMIC UNION WITH A PHOTOCONDUCTIVE MATERIAL CONTACTING SUCH MARGINAL PORTION, COMPRISING, IN COMBINATION: AN ELECTRICALLY NON-CONDUCTIVE BASE; AT LEAST TWO SEPARATED DISCRETE FILMS OF SUBSTANTIAL AREAL EXTENT OF METALLIC MATERIAL SELECTED FROM THE CLASS CONSISTING OF INDIUM AND GALLIUM, FIRMLY ADHERENT TO SAID GLASS BASE AND EACH FILM PROVIDING A MARGINAL PORTION AND EACH FILM INSULATED FROM ANOTHER FILM; AND A LAYER OF PHOTOCONDUCTIVE MATERIAL ON THE CELL BASE AND AT LEAST BRIDGING AN AREA BETWEEN AND OVERLAPPING SAID MARGINAL PORTIONS TO PROVIDE A PHOTOCONDUCTIVE ELECTRIC CURRENT PATH THEREBETWEEN.
Claim 2
Dependent Claim
100 words
A PHOTOCONDUCTIVE CELL COMPRISING ELECTRICALLY CONDUCTIVE FILMS WITH MARGINAL PORTIONS HAVING OHMIC UNION WITH A PHOTOCONDUCTIVE MATERIAL CONTACTING SUCH MARGINAL PORTION, COMPRISING, IN COMBINATION: AN ELECTRICALLY NON-CONDUCTIVE BASE; AT LEAST TWO SEPARATED DISCRETE FILMS OF SUBSTANTIAL AREAL EXTENT OF METALLIC MATERIAL SELECTED FROM THE CLASS CONSISTING OF INDIUM AND GALLIUM, FIRMLY ADHERENT TO SAID GLASS BASE AND EACH FILM PROVIDING A MARGINAL PORTION AND EACH FILM INSULATED FROM ANOTHER FILM; AND A LAYER OF PHOTOCONDUCTIVE MATERIAL ON THE CELL BASE AND AT LEAST BRIDGING AN AREA BETWEEN AND OVERLAPPING SAID MARGINAL PORTIONS TO PROVIDE A PHOTOCONDUCTIVE ELECTRIC CURRENT PATH THEREBETWEEN.
References Cited (Backward Citations)
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GB633848A
Cited
US2662957A
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US2747104A
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US2644852A
Cited
US2654819A
Cited
US2765385A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |