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:
Apr. 03, 1979
Filed:
Nov. 21, 1977
Applicant:
Inventors:
Michael Brock, Reading, GB;
Brian A Cooke, Knotty Green, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ; C23F / ;
U.S. Cl.
CPC ...
148 / ; 148 / ;
Abstract
Water-soluble lignosulphonate salts when present in an acid metal phosphating solution modify the physical form of sludge produced therein when the solution is used to treat a metal substrate. Process efficiency is improved.
Brock, Michael. (1979). Phosphating process (U.S. Patent No. 4147567). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4147567
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile