The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 28, 1984

Filed:

Oct. 26, 1981
Applicant:
Inventor:

Leslie Clark, New Castle upon Tyne, GB;

Assignee:

Roneo Alcatel Limited, Romford, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; D21F / ; B41L / ; B05D / ;
U.S. Cl.
CPC ...
428 43 ; 4283113 ; 4283197 ; 430 49 ; 427143 ; 10112821 ;
Abstract

A duplicating stencil is produced by placing an electrostatically-produced image on a substrate in contact with an ink-impervious surface layer of a stencil blank, bending the image to the surface layer by the application of heat and/or pressure and stripping the substrate from the stencil blank to remove the surface layer in the image area. The surface layer may comprise a synthetic resin composition containing a finely dispersed pigment and is attached to the porous base tissue of the stencil blank by an adhesive. Bonding of the image to the surface layer and possibly also fixing of the image to the substrate in the same operation can be effected by means of infra-red heating.


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Clark, Leslie. (1984). Duplicating stencil (U.S. Patent No. 4434198). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4434198

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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