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
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES139232UpriorityCriticalpatent/ES139232U/en
Publication of ES139232UpublicationCriticalpatent/ES139232U/en
An improved envelope essentially characterized by the fact that it comprises, internally and along one of its edges, a continuous filiform element completely hidden in the envelope dimension, this one presenting at one of its angles corresponding to one of the ends of the filiform element mentioned a tread facilitates the start of the maneuver of opening the envelope by pulling the filiform element and tearing the edge adjacent to it. (Machine-translation by Google Translate, not legally binding)
ES139232U1968-06-011968-06-01Over perfected (Machine-translation by Google Translate, not legally binding)
PendingES139232U
(en)