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:
Aug. 02, 1983
Filed:
Sep. 07, 1982
Dan V Ericson, S-212 13 Malmo, SE;
Other;
Abstract
A retainer for securing in position a matrix band around a tooth comprises a body having an upper and a lower end surface, a through-bore which extends between the end surfaces and accommodates a spindle which is rotatable in the body and around which the matrix band can be wound and which has an axial slit starting from the proximal end of the spindle with respect to the lower end surface of the body and arranged for receiving the matrix band, a peripheral surface which is adapted to be applied against a tooth and has a first recess conformed to a first type of tooth, and a first channel which extends through the lower end surface, the first recess and the bore in order to permit the insertion of the matrix band in the channel and in the slit of the spindle from the lower end surface. The peripheral surface also has a second recess which is conformed to a second type of tooth. A second channel extends through the lower end surface, the second recess and the bore.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile