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 ES0069094UpriorityCriticalpatent/ES69094Y/en
Publication of ES69094UpublicationCriticalpatent/ES69094U/en
Application grantedgrantedCritical
Publication of ES69094YpublicationCriticalpatent/ES69094Y/en
Screw screws, characterized in that it is constituted by a head destined to receive the tool with which it is screwed, after nailing; a disc, which constitutes a thick washer, comprised between the head and the body, which object is to receive the percussions to nail it, and in which through holes are made, in the direction of the axis of the screw, countersunk to receive other smaller screws of immobilization; the body, conical, provided with helical thread, from just below the disc until approximately the third last part that goes smooth to the tip, and in which, as well as in the part of the body corresponding to the last turns of the thread, longitudinal grooves are practiced, usually three, which reach the tip. (Machine-translation by Google Translate, not legally binding)
ES0069094U1958-10-181958-10-18
Lag screw
ExpiredES69094Y
(en)