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. 28, 1991
Filed:
Nov. 13, 1990
Applicant:
Inventors:
Assignee:
Japan Pionics Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C01B / ;
U.S. Cl.
CPC ...
423210 ;
Abstract
A method for purifying a gaseous hydride, which comprises bringing a crude gaseous hydride into contact with at least one material selected from copper arsenides, copper phosphides, copper silicides, copper selenides, copper borides or copper sulfides to remove oxygen contained in the crude gaseous hydride.