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. 22, 1987
Filed:
Nov. 25, 1986
Applicant:
Inventors:
George F Fowler, Jr, Norcross, GA (US);
Charles W Lehnert, Stone Mountain, GA (US);
Assignee:
Georgia-Pacific Corporation, Atlanta, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ; E04B / ; B32B / ; B28B / ;
U.S. Cl.
CPC ...
428 71 ; 252 62 ; 264109 ; 264122 ; 264333 ; 4283137 ; 428446 ; 428532 ; 428920 ;
Abstract
A fire-resistant article, for example, a fire door core comprising a major amount of expanded perlite in compressed form, an adhesive material, the major portion of which is starch, and preferably glass fibers, and a method for making the article by dry-mixing the ingredients substantially completely before water is added for the purpose of developing the adhesive characteristics of the starch.