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:
Aug. 22, 1995
Filed:
Jul. 29, 1994
Applicant:
Inventors:
Mark W Pollock, Avon, OH (US);
John J Wetula, Richmond Heights, OH (US);
Brian M Ford, Grayslake, IL (US);
Assignee:
Ucar Carbon Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428213 ; 428106 ; 428107 ; 428535 ; 428921 ; 527294 ;
Abstract
This invention relates to a fire retardant wooden structural element, such as the web of a wooden joist, a wall panel, exterior or interior siding panel or the like, which is formed of oriented strand board (OSB) having outer layers which contain particles of expandable graphite and a core layer which is free of expandable graphite.