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. 03, 1977
Filed:
Jul. 24, 1975
Applicant:
Inventors:
Koei Komatsu, Tokyo, JA;
Kunihiro Harada, Yokkaichi, JA;
Seiji Aotani, Yokohama, JA;
Akio Itabashi, Kawasaki, JA;
Assignee:
Japan Synthetic Rubber Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106111 ; 106314 ;
Abstract
A gypsum composition obtained by molding and drying an aqueous slurry comprising calcined gypsum, polyvinyl alcohol, and at least one metal compound. The composition has high surface hardness and high water resistance.
Komatsu, Koei. (1977). Gypsum composition (U.S. Patent No. 4021259). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4021259
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile