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:
May. 16, 1989
Filed:
Apr. 22, 1987
Kirkor Sirinyan, Bergisch Gladbach, DE;
Gerhard D Wolf, Dormagen, DE;
Ulrich von Gizycki, Leverkusen, DE;
Rudolf Merten, Leverkusen, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
An elegant method for the production of printed circuit boards possessing good electrical and mechanical properties comprises activating baseplates with a solution of complex compounds of elements of sub-group I or VIII of the periodic table, then applying a resist layer, exposing this partially according to a resist pattern, dissolving away the covered parts of the resist layer with a solvent, and metallizing the bared parts in a wet-chemical metallization bath in the absence of a current.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile