Patent US3232852A successfully refreshed from Google Patents.
US3232852A
Expired / Lapsed
US
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Dry photoconductographic process
Assignee: Eastman Kodak Co
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Filing: 1960-10-25
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Granted: 1966-02-01
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 Urbach Franz
- 👤 Nelson R Nail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:45
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/06; G03G17/00; G03G17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A DRY PHOTOCONDUCTOGRAPHIC PROCESS COMPRISING PASSING A D.C. CURRENT THROUGH A DRY PHOTOCONDUCTIVE LAYER CONTAINING AN IMAGEWISE DISTRIBUTION OF CONDUCTIVITY VARIATIONS AS CATHODE AND THROUGH A DRY ELECTROLYTE LAYER COMPRISING A WATER PERMEABLE SOLIDE VEHICLE CONTAINING SILVER IONS AND A SMALL PERCENTAGE OF COMPATIBLE HUMECTANT SUFFICIENT TO PROVIDE FLEXIBILITY AND CONDUCTIVITY BUT INSUFFICIENT TO CREATE MOISTNESS WHEN THE DRY ELECTROLYTE LAYER IS EXPOSED TO ATMOSPHERIC HUMIDITIES UP TO 85% RELATIVE HUMIDITY, WHICH DRY ELECTROLYTE LAYER IS IN INTIMATE ELECTRIC CONTACT WITH THE DRY SURFACE OF THE PHOTOCONDUCTIVE LAYER AND IS PRESSED THERETO BY A DRY METAL ANODE.
Claim 2
Dependent Claim
97 words
A DRY PHOTOCONDUCTOGRAPHIC PROCESS COMPRISING PASSING A D.C. CURRENT THROUGH A DRY PHOTOCONDUCTIVE LAYER CONTAINING AN IMAGEWISE DISTRIBUTION OF CONDUCTIVITY VARIATIONS AS CATHODE AND THROUGH A DRY ELECTROLYTE LAYER COMPRISING A WATER PERMEABLE SOLIDE VEHICLE CONTAINING SILVER IONS AND A SMALL PERCENTAGE OF COMPATIBLE HUMECTANT SUFFICIENT TO PROVIDE FLEXIBILITY AND CONDUCTIVITY BUT INSUFFICIENT TO CREATE MOISTNESS WHEN THE DRY ELECTROLYTE LAYER IS EXPOSED TO ATMOSPHERIC HUMIDITIES UP TO 85% RELATIVE HUMIDITY, WHICH DRY ELECTROLYTE LAYER IS IN INTIMATE ELECTRIC CONTACT WITH THE DRY SURFACE OF THE PHOTOCONDUCTIVE LAYER AND IS PRESSED THERETO BY A DRY METAL ANODE.
References Cited (Backward Citations)
DE151971C
Cited
GB464112A
Cited
AT155623B
Cited
US2692178A
Cited
US2764693A
Cited
US2866903A
Cited
US3010883A
Cited
US3010884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |