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:
Dec. 21, 1999
Filed:
Mar. 12, 1998
Alvin Stanley Topolski, Wilmington, DE (US);
Clifford Cheng-Shiou Chang, Midlothian, VA (US);
George Merton Cumberbatch, Wilmington, DE (US);
David Henry Britt, Woodstock, GA (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A composite film structure containing two inorganic layers each being not greater than 600 angstroms in thickness and having an oxygen transmission rate (OTR) not greater than 0.8 cubic centimeters/square meter-day-atmosphere with one of the layers in contact or in substantial contact with a polymeric barrier layer having an oxygen permeability coefficient (OPV) not greater than 1.5 cubic centimeters-25 microns/square meter-day-atm. The composite film structure has an oxygen transmission rate (OTR) of not greater than 0.012 cubic centimeters/square meter-day-atm and can be used in vacuum panel insulation structures.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile