The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2021
Filed:
Dec. 15, 2015
Leone S.p.a., Sesto Fiorentino, IT;
Gabriele Scommegna, Favarnuzze Impruneta, IT;
Maurizio Dolfi, Florence, IT;
LEONE S.P.A., Sesto Fiorentino, IT;
Abstract
Expansion screw for orthodontics, comprising at least one stem () with at least a threaded portion () extending along the longitudinal extension of the stem (), at least one receiving body () adapted for receiving said threaded portion () and provided with a complementarily threaded hole allowing said threaded portion () to be screwed therein, guide means () allowing said at least one receiving body () to be moved, actuation means () for actuating said stem (). The hole () of said at least one receiving body () has a longitudinal extension substantially corresponding to that of the threaded portion () of said at least one stem (). The receiving body () is a technopolymer receiving body and the stem () is embedded in the technopolymer of the receiving body when the expansion screw () is made.