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
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Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES0071509UpriorityCriticalpatent/ES71509U/en
Publication of ES71509UpublicationCriticalpatent/ES71509U/en
Over perfected characterized by its efficiency based on a fine but resistant thread adhered to the envelope by its interior so that it protrudes a centimeter, from which it can be pulled producing the opening of the envelope without the need for a letter opener or other sharp objects. (Machine-translation by Google Translate, not legally binding)
ES0071509U1959-02-071959-02-07Over perfected (Machine-translation by Google Translate, not legally binding)
PendingES71509U
(en)