US3140174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for overcoating a xerographic plate
Assignee: Xerox Corp
•
Filing: 1959-06-23
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Granted: 1964-07-07
•
Expires: 1979-06-23
Abstract
No abstract record available.
Inventors
- 👤 Harold E Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/147; G03G5/14708; G03G5/14713; G03G5/14747; G03G5/14769; G03G5/14717; G03G5/14726; G03G5/1473; G03G5/14734; G03G5/1476
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF MAKING A SMOOTH SURFACE BINDER PLATE WHICH COMPRISES: DEPOSITING A LIGHT-SENSITIVE PHOTOCONDUCTIVE MATERIAL ON THE SURFACE OF AN ELECTRICALLY CONDUCTIVE BACKING PLATE TO FORM THEREBY A PHOTOCONDUCTIVE LAYER HAVING AN IRREGULAR SURFACE, SAID PHOTOCONDUCTIVE LAYER COMPRISING A MIXTURE OF PHOTOCONDUCTIVE MATERIAL AND A WATER INSOLUBLE RESINOUS BINDER, DEPOSITING OVER SAID IRREGULAR SURFACE AN AQUEOUS SOLUTION OF A WATER SOLUBLE ELECTRICALLY INSULATING MATERIAL, SAID SOLUTION USED BEING CHEMICALLY UNREACTIVE WITH SAID PHOTOCONDUCTIVE MATERIAL, ALLOWING SAID LIQUID CARRIER TO EVAPORATE FROM SAID SOLUTION AND THE RESINOUS MATERIAL THEREIN TO THEREBY DEPOSIT IN AND FILL THE IRREGULARITIES OF SAID SURFACE WITH SAID RESINOUS MATERIAL, CONTINUING SAID DEPOSITION UNTIL A SMOOTH RESINOUS FILM OF FROM ABOUT 0.1 TO ABOUT 5 MICRONS IS FORMED ON SAID PHOTOCONDUCTIVE MATERIAL.
Claim 2
Independent Claim
126 words
A METHOD OF MAKING A SMOOTH SURFACE BINDER PLATE WHICH COMPRISES: DEPOSITING A LIGHT-SENSITIVE PHOTOCONDUCTIVE MATERIAL ON THE SURFACE OF AN ELECTRICALLY CONDUCTIVE BACKING PLATE TO FORM THEREBY A PHOTOCONDUCTIVE LAYER HAVING AN IRREGULAR SURFACE, SAID PHOTOCONDUCTIVE LAYER COMPRISING A MIXTURE OF PHOTOCONDUCTIVE MATERIAL AND A WATER INSOLUBLE RESINOUS BINDER, DEPOSITING OVER SAID IRREGULAR SURFACE AN AQUEOUS SOLUTION OF A WATER SOLUBLE ELECTRICALLY INSULATING MATERIAL, SAID SOLUTION USED BEING CHEMICALLY UNREACTIVE WITH SAID PHOTOCONDUCTIVE MATERIAL, ALLOWING SAID LIQUID CARRIER TO EVAPORATE FROM SAID SOLUTION AND THE RESINOUS MATERIAL THEREIN TO THEREBY DEPOSIT IN AND FILL THE IRREGULARITIES OF SAID SURFACE WITH SAID RESINOUS MATERIAL, CONTINUING SAID DEPOSITION UNTIL A SMOOTH RESINOUS FILM OF FROM ABOUT 0.1 TO ABOUT 5 MICRONS IS FORMED ON SAID PHOTOCONDUCTIVE MATERIAL.
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |