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:
Jul. 15, 2008
Filed:
Aug. 24, 2005
Applicants:
Mikhail R. Levit, Glen Allen, VA (US);
Laurence N. Bascom, Signal Mountain, TN (US);
Inventors:
Mikhail R. Levit, Glen Allen, VA (US);
Laurence N. Bascom, Signal Mountain, TN (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 27/38 (2006.01); D21H 17/68 (2006.01); B32B 7/02 (2006.01); B31F 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a sheet structure for electrical insulation or flame resistance comprising a barrier ply having a mica-rich face and a mica-poor face and a reinforcing ply containing a saturable backing layer attached to the mica-poor face of the barrier ply.