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. 28, 1991
Filed:
Nov. 17, 1989
Applicant:
Inventors:
Stephen M Perren, Davos-Dorf, CH;
Robert Frigg, Davos-Dorf, CH;
Paul Gisin, Waldenburg, CH;
Robert Mathys, Jr, Bettlach, CH;
Assignee:
Synthes (U.S.A.), Paoli, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606 61 ; 606 73 ;
Abstract
A bone screw has a smooth shaft segment, a threaded segment and a tapered transition segment between the shaft and the threaded segment.