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:
Sep. 20, 1994
Filed:
Oct. 12, 1993
Applicant:
Inventors:
Ulrich Knipp, Bergisch, DE;
Dieter Skoupi, Lindlar, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B65D / ; E04B / ; E04C / ; E04C / ;
U.S. Cl.
CPC ...
428 358 ; 523099 ; 5230911 ; 52578 ; 525881 ; 52806 ; 52817 ; 220445 ; 312400 ; 312401 ; 428 365 ; 428 3691 ; 428 53 ; 428 58 ; 428 71 ; 428192 ; 4283186 ; 4283193 ;
Abstract
Sandwich elements in the form of slabs, shells and the like, consisting of facings and a rigid polyurethane foam core can be joined together in an airtight and watertight manner when they are provided with edge profiles which are cast from casting materials forming flexible polyurethane foam and which have a groove and a tongue.
Published as: