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.)
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES0005641UpriorityCriticalpatent/ES5641U/en
Publication of ES5641UpublicationCriticalpatent/ES5641U/en
Automatic closing envelope by being provided with a double flange impregnated with a certain chemical substitute of the usual rubber so that with the simple pressure of the fingers the indicated closure occurs without the need of liquid or any foreign element. (Machine-translation by Google Translate, not legally binding)
ES0005641U1939-10-061939-10-06A self-closing envelope (Machine-translation by Google Translate, not legally binding)
PendingES5641U
(en)