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:
Mar. 09, 1999
Filed:
Jul. 15, 1997
Applicant:
Inventor:
Edward Lilley, Shrewsbury, MA (US);
Assignee:
Saint-Gobain Industrial Ceramics, Inc., Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 22 ;
Abstract
This invention relates to an acetabular cup having a substantially hemispherical ceramic concave surface comprising at least one debris reservoir thereon having a width of between 0.010 mm and 2 mm, and also to a ceramic hip joint prosthesis head whose outer surface comprises a similar debris reservoir.