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. 02, 1976
Filed:
Jun. 11, 1975
Applicant:
Inventor:
Alvin J Frisque, La Grange, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; C09K / ;
U.S. Cl.
CPC ...
252 11 ; 252 79 ; 252170 ; 252D / ; 252D / ; 260 / ; 260 / ;
Abstract
Windshield washer fluids of the type comprising a major portion of water, one or more water-soluble alcohols which are predominantly monohydric alcohols capable of depressing the freezing point of water and a surfactant can be improved in their operational efficiency by adding thereto from between 10-1,000 ppm of an acrylamide polymer having a molecular weight of at least 10,000.
Frisque, Alvin. (1976). Windshield washer fluids containing from 10-1000 ppm of acrylamide (U.S. Patent No. 3989633). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3989633
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile