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.
Patent No.:
Date of Patent:
Oct. 05, 1993
Filed:
Jun. 05, 1992
Applicant:
Inventors:
Thomas E Lewis, E. Hampstead, NH (US);
Michael T Nowak, Gardner, MA (US);
Assignee:
Presstek, Inc., , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41C / ; B41N / ;
U.S. Cl.
CPC ...
101453 ; 101467 ;
Abstract
A lithographic printing plate that is transformable by spark-discharge techniques so as to change its affinity for ink. The plate features a layered structure including an ink-receptive substrate, a conductive layer and an ink-repellent coating. The ink-repellent coating contains a dispersion of image-support pigments that promote straight-line travel of the spark to the surface of the plate, thereby promoting accurate imaging.