Stackable servingware is provided with repeating flange patterns configured to resist nesting and taper lock. The patterns include a first pattern which is chiral with respect to a second pattern such that the patterns are not superimposable on one another. Preferably, the servingware is packaged in...http://www.google.fr/patents/US6241096?utm_source=gb-gplus-shareBrevet US6241096 - Disposable servingware with nesting resistant flange patterns
Disposable servingware with nesting resistant flange patterns
