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:
Jan. 16, 1979
Filed:
Jan. 08, 1975
Applicant:
Inventors:
Yoshinori Suzuki, Tokyo, JP;
Akihiko Asayama, Kawasaki, JP;
Fumio Dohi, Tokyo, JP;
Takaharu Takahashi, Tokyo, JP;
Isao Toyomoto, Hiratsuka, JP;
Assignee:
Kowa Chemical Industry Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
264256 ; 106 98 ; 106315 ; 264245 ; 264333 ; 264D / ;
Abstract
A decorative coating layer, unified with the succulent and fragile surface of a concrete board, is formed by a method comprising laminating an inorganic and hydraulic coating material on the surface of an unhardened concrete board placed in a mold, and immediately thereafter heat-curing the thus coated concrete board. According to this method, beautifully dressed precast concrete boards can be mass-produced by a shortened process with improved efficiency of operation.