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:
Apr. 24, 2001
Filed:
Dec. 29, 1998
Applicant:
Inventors:
Michael R. Lynn, Arlington Heights, IL (US);
Steven Blaine, Wood Dale, IL (US);
Assignee:
United States Gypsum Co., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/300 ;
U.S. Cl.
CPC ...
B32B 1/300 ;
Abstract
A non-combustible gypsum/fiber board comprises two surface layers and at least one core layer, wherein the surface layers comprise a gypsum composition that is reinforced with organic fibers, and the core layer comprises a gypsum composition containing no more than about 3% by weight of organic materials.