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:
Oct. 02, 1979
Filed:
Mar. 15, 1978
Applicant:
Inventors:
Yoshio Yoshikawa, Ushiku, JP;
Takanari Nawata, Tokyo, JP;
Mikio Goto, Matsudo, JP;
Yuichi Fujii, Tokyo, JP;
Assignee:
Mitsubishi Gas Chemical Co., Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
252408 ; 2323 / ; 2323 / ; 73 19 ; 73 23 ; 116206 ;
Abstract
An oxygen indicator comprising at least one dyestuff, at least one alkaline substance and at least one reducing agent is disclosed.