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. 01, 1979
Filed:
Jan. 18, 1971
Applicant:
Inventor:
William S Hollingshead, Cuyahoga Falls, OH (US);
Assignee:
The Goodyear Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568793 ;
Abstract
An improved process of preparing phenolic antioxidants in increased yields with superior color properties, the improvements being obtained by carefully controlling process variables such as the temperature of the reaction, moisture level and catalyst level.
Hollingshead, William. (1979). Process of preparing phenolic compositions (U.S. Patent No. 4152531). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4152531
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile