Gussetted packages having openable and reclosable interlocking seals, the seals having male and female portions, snap detents, and formed transversely to the direction of film flow. The packaging film is provided at package length intervals with thermoformable strips secured thereto transversely to the...http://www.google.fr/patents/US6572267?utm_source=gb-gplus-shareBrevet US6572267 - Gussetted packages