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.

Date of Patent:
Oct. 28, 2003

Filed:

Feb. 08, 2002
Applicant:
Inventors:

Yoshiaki Ishibashi, Kawasaki, JP;

Itaru Yokoyama, Tokyo, JP;

Masanobu Seki, Tokyo, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 2/400 ; C04B 2/814 ; C04B 1/100 ; E04C 2/04 ; E04B 1/92 ;
U.S. Cl.
CPC ...
C04B 2/400 ; C04B 2/814 ; C04B 1/100 ; E04C 2/04 ; E04B 1/92 ;
Abstract

A gypsum-based building material comprising gypsum as the main material and an anthraquinone compound incorporated.


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