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:
Jun. 27, 1989
Filed:
May. 16, 1988
Applicant:
Inventors:
Assignee:
Foseco International Limited, Birmingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ;
U.S. Cl.
CPC ...
164 45 ; 164 34 ; 164134 ; 164244 ; 164249 ; 264 454 ; 264275 ;
Abstract
A metal casing pattern of expanded thermoplastics material such as polystyrene or polymethyl methacrylate has a filter comprising a porous ceramic body, such as a body having pores extending from one face to another face or a foam structure, incorporated therein.