(under subclass 266.1) Apparatus wherein the cover is made of generally flexible material, i.e., will not retain its shape when filled with the weight of contents; is generally three dimensional, i.e., has sides and a bottom; and is open at the top before being filled and closed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
469, for a method of package making comprising filling a preformed, flexible, expandable receptacle and closing it.