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:
Sep. 03, 1996
Filed:
Jun. 07, 1995
Thomas E Lewis, E. Hampstead, NH (US);
Richard A Williams, Hampstead, NH (US);
Frank G Pensavecchia, Hudson, NH (US);
John F Kline, Londonderry, NH (US);
John P Gardiner, Londonderry, NH (US);
Michael T Nowak, Leominster, MA (US);
Kenneth T Robichaud, Fitchburg, MA (US);
Presstek, Inc., Hudson, NH (US);
Abstract
Apparatus and methods for imaging lithographic plates using laser devices that emit in the near-infrared region, and plates suitable for imaging with the apparatus and methods. Laser output either ablates one or more plate layers or physically transforms a surface layer, in either case resulting in an imagewise pattern of features on the plate. The image features exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas.