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, 1990
Filed:
Oct. 26, 1988
Applicant:
Inventor:
William H Gumprecht, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C01G / ; C22B / ; B08B / ;
U.S. Cl.
CPC ...
502 24 ; 134 2214 ; 134 2219 ; 423 87 ; 502 32 ;
Abstract
A process is disclosed for dissolving and dispersing spent antimony halide catalysts by contact with methylene chloride.