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. 12, 1999
Filed:
Jan. 21, 1997
Applicant:
Inventor:
Ernest W Ellis, Harvard, MA (US);
Assignee:
Presstek, Inc., Hudson, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41C / ; G03F / ; B41M / ;
U.S. Cl.
CPC ...
430309 ; 4302711 ; 430302 ; 427140 ; 427142 ; 106-2 ; 101465 ; 101466 ; 101467 ;
Abstract
To delete undesired ink-receptive areas on a wet lithographic printing construction, an oleophobic material is applied to the hydrophilic surface of the plate that has suffered contamination and/or scratching, and allowed to cure. So long as the hydrophilic surface is capable of permanently bonding the oleophobic deletion agent, the areas to which that agent has been applied will not accept ink.