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:
Mar. 17, 1992
Filed:
May. 03, 1991
Applicant:
Inventors:
Dietmar Wittenberg, Mannheim, DE;
Klaus Hahn, Kirchheim, DE;
Uwe Guhr, Gruenstadt, DE;
Hans Hintz, Ludwigshafen, DE;
Michael P O'Callaghan, deceased, late of Staten Island, NY (US);
Michael Riethues, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 82 ; 521 56 ; 521 59 ; 521 60 ; 521 98 ; 521139 ; 521910 ;
Abstract
An expandable styrene polymer containing