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. 03, 1977
Filed:
Sep. 18, 1974
Applicant:
Inventors:
Thomas J Rockett, East Greenwich, RI (US);
John S Tiffany, Camarillo, CA (US);
John J O'Connell, Tustin, CA (US);
Assignee:
American Hospital Supply Corporation, Evanston, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C08K / ;
U.S. Cl.
CPC ...
32 15 ; 260 4215 ; 260 4252 ; 26099811 ;
Abstract
An improved composite material for use as a dental restorative in which the major component consists of a finely-divided reinforcing filler having a hardness no greater than about 5.0 on the Moh's scale. Despite the relative softness of such a filler, in contrast to fillers conventionally used in dental composites, the final restoration has superior resistance to abrasion and wear, can be finished more effectively and more aesthetically, and can be handled with metal dental instruments.