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:
Aug. 17, 1993
Filed:
Feb. 18, 1992
Applicant:
Inventors:
Richard A Williams, Hampstead, NH (US);
Thomas E Lewis, E. Hampstead, NH (US);
John F Kline, Londonderry, NH (US);
John P Gardiner, Londonderry, NH (US);
Assignee:
Presstek, Inc., Hudson, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41C / ; B41C / ; B41N / ;
U.S. Cl.
CPC ...
101467 ; 101453 ; 101458 ;
Abstract
Apparatus and method for imaging a lithographic plate having a metal first layer and a second layer underlying the metal layer, the first and second layers exhibiting different affinities for fountain solution and/or ink. Selective removal of the first layer in an imagewise pattern reveals the second layer, resulting in direct production of image spots. The plate is ready for printing at the conclusion of the imaging process.