US3222215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a photoconductive layer
Assignee: Individual
•
Filing: 1962-05-23
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Granted: 1965-12-07
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Durr Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
H; H10; H10F; H10F30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD OF PRODUCING ON A SUPPORT A PHOTOCONDUCTIVE LAYER, COMPRISING THE STEPS OF FORMING ON A SUPPORT A PULVERULENT LAYER CONSISSTING ESSENTIALLY OF AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CADMIUM SULFIDE AND CADMIUM SELENIDE, AND AN ACTIVATING AGENT THEREFOR, SAID ACTIVATING AGENT INCLUDING A SALT OF A MEMBER OF THE GROUP CONSISTING OF COPPER AND SILVER; AND HEATING SAID LAYER IN THE PRESENCE OF A GAS ADAPTED TO IMPROVE CRYSTALLIZATION AND SINTERING OF THE SAME AND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN CHLORIDE, HYDROGEN BROMIDE AND HYDROGEN IODIDE TO A TEMPERATURE OF BETWEEN 550*C. AND 1000*C. SO AS TO CAUSE CRYSTAL GROWTH AND SINTERING OF SAID LAYER TO FORM A COHERENT SOLID BODY OF IMPROVED PHOTOCONDUCTIVITY.
Claim 2
Independent Claim
122 words
A METHOD OF PRODUCING ON A SUPPORT A PHOTOCONDUCTIVE LAYER, COMPRISING THE STEPS OF FORMING ON A SUPPORT A PULVERULENT LAYER CONSISSTING ESSENTIALLY OF AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CADMIUM SULFIDE AND CADMIUM SELENIDE, AND AN ACTIVATING AGENT THEREFOR, SAID ACTIVATING AGENT INCLUDING A SALT OF A MEMBER OF THE GROUP CONSISTING OF COPPER AND SILVER; AND HEATING SAID LAYER IN THE PRESENCE OF A GAS ADAPTED TO IMPROVE CRYSTALLIZATION AND SINTERING OF THE SAME AND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN CHLORIDE, HYDROGEN BROMIDE AND HYDROGEN IODIDE TO A TEMPERATURE OF BETWEEN 550*C. AND 1000*C. SO AS TO CAUSE CRYSTAL GROWTH AND SINTERING OF SAID LAYER TO FORM A COHERENT SOLID BODY OF IMPROVED PHOTOCONDUCTIVITY.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |