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. 15, 1977
Filed:
Dec. 05, 1975
Applicant:
Inventor:
Jerry J Svarz, La Grange, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
210 52 ; 162 29 ; 210 53 ; 210 54 ;
Abstract
Color is removed from paper mill waste water by a precipitation method using relatively small amounts of alkylated and acylated amines and quaternary compounds thereof under acidic conditions as a complexing agent and precipitant for color bodies in such waste waters.
Svarz, Jerry. (1977). Removal of color from paper mill waste waters (U.S. Patent No. 4058458). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4058458
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile