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.)
Caballero Sanchez Mariano
Original Assignee
Caballero Sanchez Mariano
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 Caballero Sanchez MarianofiledCriticalCaballero Sanchez Mariano
Priority to ES0182295UpriorityCriticalpatent/ES182295U/en
Publication of ES182295UpublicationCriticalpatent/ES182295U/en
Over perfected, essentially characterized by that seen by one of, its faces -for example: the obverse has an ideal line, preferably straight and parallel to one of the shorter edges of the envelope, along which weakening of the face has been effected. the sheet, sheets or flaps that are in that area of the face, or in some of them only, and that defines on the surface of the envelope two parts. The width of the smallest part is enough to catch it with the fingers of one hand and, holding the other part with the other hand, produce the easy breakage of the envelope along the weakening line, breaking the sheet at the same time or sheets of the back and linings, if worn, not weakened, by areas close to the line of weakening of the obverse, which serves as a guide, leaving the envelope open. (Machine-translation by Google Translate, not legally binding)
ES0182295U1972-07-111972-07-11Over perfected (Machine-translation by Google Translate, not legally binding)
PendingES182295U
(en)