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. 18, 2017
Filed:
Feb. 14, 2014
Applicant:
United States Gypsum Company, Chicago, IL (US);
Inventors:
Qiang Yu, Grayslake, IL (US);
Srinivas Veeramasuneni, Round Lake, IL (US);
Weixin D. Song, Vernon Hills, IL (US);
Wenqi Luan, Hawthorn Woods, IL (US);
Assignee:
United States Gypsum Company, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B28B 1/50 (2006.01); C04B 20/06 (2006.01); C04B 28/14 (2006.01); B32B 38/00 (2006.01); C04B 111/00 (2006.01); C04B 111/28 (2006.01);
U.S. Cl.
CPC ...
B28B 1/50 (2013.01); B32B 38/164 (2013.01); C04B 20/06 (2013.01); C04B 28/145 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/28 (2013.01); Y10T 428/249968 (2015.04); Y10T 428/249979 (2015.04); Y10T 428/26 (2015.01); Y10T 428/31971 (2015.04);
Abstract
A method of preparing a reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance that meet or exceed one or more industry standard fire tests.