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US3738855A Expired / Lapsed US ⏱️ 0.0 years remaining

Induction imaging system

Assignee: Xerox Corp
•
Filing: 1970-12-21
•
Granted: 1973-06-12
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Expires: 1990-12-21
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Abstract

Abstract SEQUENTLY APPLYING ELECTROSCOPIC MARKING MATERIAL TO THE RECEIVING MEMBER WHILE IT IS IN CONTACT WITH THE SECOND IMAGING MEMBER OR IMMEDIATELY AFTER SEPARATION THEREFROM THUS SIMULTANEOUSLY FORMING A PLURALITY OF VISIBLE POWDER IMAGES ON THE RECEIVING MEMBER. THE DEVELOPED POWDER IMAGES MAY BE FIXED TO THE RECEIVING MEMBER OR TRANSFERRED TO A FINAL COPY SHEET AND FIXED THEREON. A METHOD FOR SIMULTANEOUSLY FORMING A PLURALITY OF VISIBLE POWDER IMAGES ON A RECEIVING MEMBER IS DESCRIBED. THE METHOD COMPRISES BRINGING A SUBSTANTIALLY HUMIDITY INTENSITIVE RECEIVING MAMBER HAVING CONTROLLED CONDUCTIVITY CHARACTERISTICS INTO CONTACT WITH A FIRST IMAGING MEMBER BEARING AN ELECTROSTATIC CHARGE PATTERN SO AS TO INDUCE A LATENT ELECTROSTATIC IMAGE IN THE RECEIVING MEMBER, SEPARATING THE LATTER FROM THE FIRST IMAGING MEMBER WHILE CONTACTING THE RECEIVING MEMBER WITH A SECOND IMAGING MEMBER BEARING AN ELECTROSTATIC CHARGE PATTERN AND SUB-

Inventors

  • 👤 R Gundlach

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 13:32
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/18

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1976-06-11 1976-12-11 1977-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-11 1980-12-11 1981-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-11 1984-12-11 1985-06-12 $7700.00 Window Closed / Lapsed

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