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:
May. 17, 1994
Filed:
May. 21, 1991
Applicant:
Inventors:
David Atherton, North Kingstown, RI (US);
Morgan E Gager, Warwick, RI (US);
Sankar K Paul, West Warwick, RI (US);
Assignee:
Arkwright Incorporated, Fiskeville, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; D06N / ;
U.S. Cl.
CPC ...
428143 ; 428147 ; 428172 ; 428212 ; 428327 ; 428331 ; 430 14 ; 430162 ;
Abstract
A matte drafting sheet composite at least one side of which comprises a single polymeric matrix layer containing particulates to provide a matte or drafting surface and a quaternary ammonium salt of high charge density at a concentration sufficient to provide a resistivity of said matrix layer of at most about 1.times.10.sup.13 ohms/square.