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:
Jun. 30, 1981
Filed:
Dec. 06, 1979
Leopold P Lustig, Newton Centre, MA (US);
Other;
Abstract
Parapulpal dental restorative pins for use with all forms of dental restorative materials, including impression-taking materials, modeling waxes and the like, as well as amalgams, gold and other materials used for constructing a superstructure on a natural tooth, have heads to anchor the pins in such materials, and means on the head to prevent the head from rotating around the longitudinal axis of the pin in the restorative material. A constricted neck between the head and the principal body of the pin allows the head to be oriented into a plane that is not perpendicular to the pin axis. The heads can take various shapes and configurations. A composite pin, having a principal body made of one material and a head made of another is shown.