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:
Aug. 07, 1990
Filed:
Oct. 31, 1988
Applicant:
Inventors:
William G Carpenter, Powell, OH (US);
William R Dunnavant, Columbus, OH (US);
Assignee:
Ashland Oil, Inc., Russell, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
523143 ; 26433119 ; 525456 ;
Abstract
Certain polyester polyols are used in polyurethane-forming binders to improve the shakeout of molds and cores, made by a cold-box process, used to make low melting metal castings.
Carpenter, William. (1990). Polyurethane-forming foundry binders containing a polyester polyol (U.S. Patent No. 4946876). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4946876
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile