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:
Dec. 17, 1996
Filed:
Feb. 03, 1995
Applicant:
Inventors:
Robert Boniface, Vallangoujard, FR;
Michel Faurie, Veyre-Monton, FR;
Pablo Goldschmidt, Paris, FR;
Jean-Pierre Lontrade, Clermont-Ferrand, FR;
Jacques Luyckx, Ceyrat, FR;
Assignee:
OST-Developpment, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61F / ; A61F / ; C12N / ;
U.S. Cl.
CPC ...
424549 ; 4352402 ; 514588 ; 623 16 ; 424422 ;
Abstract
Osteoplasty material substantially devoid of antigenic proteins, wherein the material contains a natural bone structure in which non-denatured type I collagen is integrated, is prepared by selective extraction of bone tissue of human or animal origin. The selective extractant is an aqueous solution of 2-10 molar urea, and the extraction step is conducted at preferably 10.degree.-30.degree. C.