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:
Dec. 09, 1997
Filed:
Feb. 13, 1996
Applicant:
Inventors:
Franz Gubitz, Kelkheim, DE;
Gunther Reitzel, Trebur, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2104164 ; 210232 ; 2101165 ; 210496 ; 2105101 ;
Abstract
A liquid filter for purifying mineral oil, the components of which are composed of a thermoplastic polymer, preferably polyacetal, is produced by welding the individual parts. Since no foreign materials are present, the filter can be subjected to a recycling process easily and without problem.