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:
Aug. 17, 1993
Filed:
Apr. 21, 1992
Applicant:
Inventors:
Ryuzo Ueno, Nishinomiya, JP;
Akihiko Tabata, Ushiku, JP;
Assignee:
K.K. Ueno Seiyaku Oyo Kenkyujc, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25218828 ; 252184 ; 252397 ;
Abstract
A new oxygen absorbent which is used sealed in a pack with a food to prevent the food from deteriorating is disclosed, in which the oxygen absorbent contains ascorbic acid and/or salts thereof, an alkaline compound such as sodium carbonate, a reaction accelerator such as ferrous sulfate, and a silica gel, and improves the flowability and the oxygen absorbability.