Disposable receptacles for storing articles in sterile condition and having breather means integral with the walls thereof, as well as apparatus and methods for making such receptacles and the materials therefor, are disclosed. The receptacles are fabricated of a laminate comprising a layer of breathable...http://www.google.com/patents/US4380485?utm_source=gb-gplus-sharePatent US4380485 - Method of making breathable receptacles
