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 ES0061491UpriorityCriticalpatent/ES61491U/en
Publication of ES61491UpublicationCriticalpatent/ES61491U/en
An improved over-letter, essentially characterized by comprising a sheet of paper, preferably rectangular, which superposed by folding or folding, forms two equal parts between each other, the front and back of the envelope, having a flap capable of folding, to determine the medium by gluing or staple, on the back. Considering the folded envelope, a box or window, allows the visibility of the address of the recipient printed inside on the back face. In its superficial extension and lower part, it will carry the convenient text, as well as the date and place. On the front convenient indications also printed. (Machine-translation by Google Translate, not legally binding)
ES0061491U1957-08-211957-08-21An improved envelope (Machine-translation by Google Translate, not legally binding)
PendingES61491U
(en)