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:
Jul. 19, 1983
Filed:
Mar. 08, 1982
Applicant:
Inventors:
Manfred Krull, Heiligkreuzsteinach, DE;
Udo Lobert, Neuenburg, DE;
Dieter Stamm, Heidelberg, DE;
Klaus Veeser, Mullheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim an der Bergstrasse, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 70 ; 428 76 ; 428212 ; 428218 ; 428284 ; 428285 ; 428286 ; 428287 ; 428288 ; 428703 ;
Abstract
Structural panel of gypsum and an envelope, partly impressed therein, of a bonded mineral and/or fiberglass fabric which has on the inside facing the gypsum larger pores than on the outside, the fabric containing at least two kinds of fibers which are cemented together by a bonding agent, where the fibers with the larger diameter are arranged on the inside and the bonding agent contains 30 to 85 percent by weight aluminum, iron and/or silicon hydroxide.