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:
Jul. 11, 2000
Filed:
Apr. 16, 1999
Ernest W Ellis, Harvard, MA (US);
Presstek, Inc., Hudson, NH (US);
Abstract
Lithographic printing members have inorganic protective layers that may be applied by vacuum deposition. In a representative construction, a substrate and a first layer thereover have different affinities for ink and/or a liquid to which ink will not adhere; the first layer may, for example, be applied under vacuum and comprise a metal or a metallic inorganic layer. Onto this layer is deposited a material comprising, for example, a boron ceramic, and under conditions ensuring that oxygen is present at least at the interface between the boron ceramic and the first layer. The first layer may incorporate a surface layer of oxygen or may be an oxygen compound. The oxygen facilitates hydrolysis of the boron ceramic during the print 'make-ready' process.