US3010883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic electrophotography
Assignee: 3M Co
•
Filing: 1956-03-30
•
Granted: 1961-11-28
•
Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Edgar G Johnson
- 👤 Byron W Neher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:58
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/02; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A METHOD FOR PRODUCING A VISIBLE REPRODUCTION OF AN IMAGE PATTERN WHICH COMPRISES EXPOSING TO SAID IMAGE PATTERN AN INTEGRAL PHOTOCONDUCTIVE SHEET COMPRISING A HIGHLY ELECTRICALLY-CONDUCTIVE METAL LAYER AND A PHOTO CONDUCTIVE COATING OVERLYING AND BONDED DIRECTLY TO SAID METAL LAYER COMPRISING AN N-TYPE PHOTOCONDUCTOR IN PARTICULATE FORM AND AN ORGANIC WATER-RESISTANT BINDER, SAID PHOTOCONDUCTIVE COATING BONDED TO SAID METAL LAYER HAVING A CONDUCTIVELY OF AT LEAST 10-7 MHO/CM. ON EXPOSTURE TO LIGHT, CONTACTING THE PHOTOCONDUCTIVE SHEET ON THE EXPOSED SURFACE THEREOF WITH A ELECTROLYTICALLY-CONDUCTIVE LIQUID SOLUTION CONTAINING A DEVELOPER MATERIAL, AND CREATING A DIRECT CURRENT ELECTRICAL POTENTIAL, AND THEREBY CAUSING A CURRENT FLOW, BETWEEN SAID METAL LAYER AND SAID ELECTROLYTIC SOLUTION WHILE THE EXPOSED SURFACE OF SAID PHOTOCONDUCTIVE SHEET IS IN CONTACT WITH SAID ELECTROLYTIC SOLUTION TO DEPOSIT A MATERIAL DERIVED FROM SAID DEVELOPER MATERIAL ON SAID EXPOSED SURFACE WHICH EFFECTS A VISIBLE COLOR CHANGE IMAGEWISE ON SAID EXPOSED SURFACE.
Claim 2
Independent Claim
151 words
A METHOD FOR PRODUCING A VISIBLE REPRODUCTION OF AN IMAGE PATTERN WHICH COMPRISES EXPOSING TO SAID IMAGE PATTERN AN INTEGRAL PHOTOCONDUCTIVE SHEET COMPRISING A HIGHLY ELECTRICALLY-CONDUCTIVE METAL LAYER AND A PHOTO CONDUCTIVE COATING OVERLYING AND BONDED DIRECTLY TO SAID METAL LAYER COMPRISING AN N-TYPE PHOTOCONDUCTOR IN PARTICULATE FORM AND AN ORGANIC WATER-RESISTANT BINDER, SAID PHOTOCONDUCTIVE COATING BONDED TO SAID METAL LAYER HAVING A CONDUCTIVELY OF AT LEAST 10-7 MHO/CM. ON EXPOSTURE TO LIGHT, CONTACTING THE PHOTOCONDUCTIVE SHEET ON THE EXPOSED SURFACE THEREOF WITH A ELECTROLYTICALLY-CONDUCTIVE LIQUID SOLUTION CONTAINING A DEVELOPER MATERIAL, AND CREATING A DIRECT CURRENT ELECTRICAL POTENTIAL, AND THEREBY CAUSING A CURRENT FLOW, BETWEEN SAID METAL LAYER AND SAID ELECTROLYTIC SOLUTION WHILE THE EXPOSED SURFACE OF SAID PHOTOCONDUCTIVE SHEET IS IN CONTACT WITH SAID ELECTROLYTIC SOLUTION TO DEPOSIT A MATERIAL DERIVED FROM SAID DEVELOPER MATERIAL ON SAID EXPOSED SURFACE WHICH EFFECTS A VISIBLE COLOR CHANGE IMAGEWISE ON SAID EXPOSED SURFACE.
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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) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |