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:
Nov. 30, 1976
Filed:
Jul. 11, 1974
Applicant:
Inventors:
Joseph Polichette, South Farmingdale, NY (US);
Edward J Leech, Oyster Bay, NY (US);
Assignee:
Photocircuits Divison of Kollmorgen Corporation, Glen Cove, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; B32B / ;
U.S. Cl.
CPC ...
96 384 ; 96 4 / ; 96 4 / ; 96 49 ; 96 67 ; 96 88 ; 96 9 / ; 96 92 ; 96 93 ; 204 / ; 427 42 ; 427 43 ; 427 53 ; 427 56 ; 427 96 ; 427 97 ; 427 98 ; 427261 ; 428137 ;
Abstract
Non-conductive real images are formed on substrates by depositing reducible metal salt compositions thereon from an aqueous acidic solution of pH 1.5-5 containing bromide ions and exposing the coated substrates to radiant energy to reduce the metal salt to metallic nuclei and to produce a real image of metal, which is intensified and built up by electroless metal deposition. The metal salt composition can either be selectively deposited and then exposed, or uniformly deposited and then selectively exposed, to produce the real image.