Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES0265667ApriorityCriticalpatent/ES265667A1/en
Publication of ES265667A1publicationCriticalpatent/ES265667A1/en
Improvements in the manufacture of semi-rigid containers, characterized essentially by the fact of forming a tubular body, based on a flexible, laminar material, such as cellulose acetate, with connection by the generatrix, whose tubular body is then subjected to an operation of molding on the edge of their mouths, in which, by means of heat, the surrounding fold of said edge is achieved by forming, either inside the mouth or on its outer periphery, a semi-rigid bead like a walloon that provides solidity and uniformity of diameter and conformation in the mouths of the body of the container, in whose mouths a fixed-bottom and a removably coupled lid are subsequently coupled. (Machine-translation by Google Translate, not legally binding)
ES0265667A1961-02-211961-02-21Improvements in the manufacture of semi-rigid packaging (Machine-translation by Google Translate, not legally binding)
ExpiredES265667A1
(en)