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:
May. 13, 2003
Filed:
Dec. 07, 2001
GC Corporation, Tokyo, JP;
Abstract
To develop a dental magnetic attachment having stable adhesive properties and capable of being adhered and fixed in a position in an alveolar ridge side, which does not require one to perform sandblast processing during the use and does not form a space between a permanent magnet structure and a denture base even when it is used in an oral cavity over a long period of time. 80 to 100% of a surface of a cover as a shell of the permanent magnet structure of the dental magnetic attachment, except for a surface thereof coming contact with a keeper, is beforehand processed by a chemical or mechanical method so as to have a surface roughness such that a maximum roughness, Rmax is 5 to 15 &mgr;m and that a ten-point average roughness, Rz is 3 to 8 &mgr;m.