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. 09, 2004
Filed:
Feb. 25, 2000
Applicant:
Inventors:
Robert B. Bruce, Burlington, CA;
David M. Harriss, Chesterfield, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/302 ; B32B 1/314 ; B32B 1/310 ; B32B 1/300 ; B27K 1/00 ; B27K 3/00 ; B27K 5/00 ; E04B 1/62 ; E04C 2/54 ;
U.S. Cl.
CPC ...
B32B 1/302 ; B32B 1/314 ; B32B 1/310 ; B32B 1/300 ; B27K 1/00 ; B27K 3/00 ; B27K 5/00 ; E04B 1/62 ; E04C 2/54 ;
Abstract
The present invention relates to a fungus resistant gypsum board, made of first and second polymeric fibrous sheets with a gypsum core sandwiched there between. The gypsum core containing less than 0.03% of formulation additives that serve as fungus nutrients and less than 0.5% of the dry gypsum core contains of fungus nutrients. The fibrous sheets are preferably nonwovens and the gypsum core preferably contains a fungicide. The invention is also directed to a process for making a fungus resistant gypsum board.