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.

Date of Patent:
Oct. 16, 2012

Filed:

Aug. 04, 2005
Applicants:

Simon Girshovich, Kfar Saba, IL;

Reuven Feldman, Ramat-Gan, IL;

Inventors:

Simon Girshovich, Kfar Saba, IL;

Reuven Feldman, Ramat-Gan, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/00 (2006.01); B32B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention concerns a composite article comprising a plurality of layers, wherein at least one of the layers is a defective polymeric layer. The defective polymeric layer has at least one artificial defect, in the form of a volume of air confined by walls made of said defective polymeric layer, and by layers adjacent thereto. The invention further provides the use of a composite article for calibrating equipment and a method for making such a composite article.


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