US3096260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-step electrophotography
Assignee: Eastman Kodak Co
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Filing: 1959-06-02
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Granted: 1963-07-02
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Expires: 1979-06-02
Abstract
No abstract record available.
Inventors
- 👤 Nelson R Nail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:59
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/22; G03G13/26; G03G13/28; G03G17/00; G03G17/02; G03G9/00; G03G9/08; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE METHOD OF RECORDING A RADIATION IMAGE BY USE OF A PHOTOCONDUCTIVE LAYER CONTAINING PHOTOCONDUCTIVE ZINC OXIDE IN AN INSULATING BINDER COMPRISING (A) ESTABLISHING IN SAID LAYER AN IMAGEWISE DISTRIBUTED PATTERN OF ELECTRICAL CONDUCTIVITY, (B) ELECTROPLATING ONTO ONE SURFACE OF SAID LAYER IN CONFORMITY WITH SAID PATTERN A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ELECTROPLATABLE METALS AND IRON DITHIOXIMIDE, BY PASSING AN ELECTRIC CURRENT THROUGH THE LAYER WHILE THE CONDUCTIVITY PATTERN IS PRESENT AND WHILE SAID ONE SURFACE IS IN CONTACT WITH AN ELECTROLYTE CONTAINING IN SOLUTION A MATERIAL SELECTTED FROM THE GROUP CONSISTING OF IONS OF SAID METALS AND FERROUS CHLORIDE TETRAHYDRATE WITH DITHIOXIMIDE, (C) APPLYING A NEGATIVE ELECTROSTATIC CHARGE TO SAID SURFACE BEARING THE IMAGEWISE DISTRIBUTED ELECTROPLATED MATERIAL, SUCH APPLICATION BEING CARRIED OUT WITH THE SURFACE SUBSTANTIALLY DRY AND IN THE ABSENCE OF RADIATION TO WHICH THE SAID LAYER IS SENSITIVE, (D) IMAGEWISE TONING SAID CHARGED SURFACE BY APPLYING XEROGRAPHIC TONER THERETO AND (E) FIXING THE TONER TO THE SURFACE.
Claim 2
Independent Claim
163 words
THE METHOD OF RECORDING A RADIATION IMAGE BY USE OF A PHOTOCONDUCTIVE LAYER CONTAINING PHOTOCONDUCTIVE ZINC OXIDE IN AN INSULATING BINDER COMPRISING (A) ESTABLISHING IN SAID LAYER AN IMAGEWISE DISTRIBUTED PATTERN OF ELECTRICAL CONDUCTIVITY, (B) ELECTROPLATING ONTO ONE SURFACE OF SAID LAYER IN CONFORMITY WITH SAID PATTERN A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ELECTROPLATABLE METALS AND IRON DITHIOXIMIDE, BY PASSING AN ELECTRIC CURRENT THROUGH THE LAYER WHILE THE CONDUCTIVITY PATTERN IS PRESENT AND WHILE SAID ONE SURFACE IS IN CONTACT WITH AN ELECTROLYTE CONTAINING IN SOLUTION A MATERIAL SELECTTED FROM THE GROUP CONSISTING OF IONS OF SAID METALS AND FERROUS CHLORIDE TETRAHYDRATE WITH DITHIOXIMIDE, (C) APPLYING A NEGATIVE ELECTROSTATIC CHARGE TO SAID SURFACE BEARING THE IMAGEWISE DISTRIBUTED ELECTROPLATED MATERIAL, SUCH APPLICATION BEING CARRIED OUT WITH THE SURFACE SUBSTANTIALLY DRY AND IN THE ABSENCE OF RADIATION TO WHICH THE SAID LAYER IS SENSITIVE, (D) IMAGEWISE TONING SAID CHARGED SURFACE BY APPLYING XEROGRAPHIC TONER THERETO AND (E) FIXING THE TONER TO THE SURFACE.
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |