US Patent 7253953 Polymer sheet for projection screen

Patent 7253953 was granted and assigned to Stewart Filmscreen on August, 2007 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

‌

Stewart Filmscreen

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7253953

Patent Inventor Names

Gary Allan Browning0

Date of Patent

August 7, 2007

Patent Application Number

11214429

Date Filed

August 29, 2005

Patent Primary Examiner

W. B. Perkey

Patent abstract

A polymer sheet for use in a projection screen comprises polyorgano silsesquioxane microspheres that enhance light diffusing characteristics. Also disclosed is a projection screen comprising at least two glass plates and the polymer sheet disposed therebetween. Also disclosed is a method of manufacturing a polymer sheet by incorporating the microspheres with the polymer.

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