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:
Jun. 12, 2012
Filed:
Jul. 16, 2004
Stephen William Sankey, Great Smeaton, GB;
Ken Evans, Yarm, GB;
David Voisin, Midlothian, VA (US);
Stephen Keith Franzyshen, Richmond, VA (US);
Stephen William Sankey, Great Smeaton, GB;
Ken Evans, Yarm, GB;
David Voisin, Midlothian, VA (US);
Stephen Keith Franzyshen, Richmond, VA (US);
DuPont Teijin Films U.S. Limited Partnership, Chester, VA (US);
Abstract
A heat-scalable, composite film said film comprising a polymeric substrate layer having a first and second surface and disposed on a surface of the substrate layer a water-soluble barrier layer, wherein (i) the substrate layer has one or more venting means therein; and (ii) the thickness of the barrier layer is from about 0.05 to about 40 μm; a process for the manufacture thereof; and use thereof as a self-venting film in the packaging of an ovenable meal.