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:
Apr. 15, 2014
Filed:
Oct. 23, 2008
Jörn Schröer, Herdecke, DE;
Stefan Kostrewa, Fröndenberg, DE;
Jörn Schröer, Herdecke, DE;
Stefan Kostrewa, Fröndenberg, DE;
Ewald Dorken AG, Herdecke, DE;
Abstract
A vapor-permeable laminate () with at least one first outer layer () and at least one second outer layer (), the outer layers () having perforations () and being joined to one another in such a way that the perforations of the first outer layer () do not coincide with the perforations () of the second outer layer (), and a structure () having pores () being provided between the outer layers (). In order to achieve sufficient vapor permeability with at the same time sufficient hydrostatic seal-tightness, it is provided that each of the pores () has a clear cross-sectional area (A) of less than 200 μm.