Granted Patent
Utility
US 5,236,456 · App. 07/642,633
Osteogenic composition and implant containing same
Inventors:
Robert K. O'Leary, Annamarie B. Prewett
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Jan 17, 1991
Inventors
Robert K. O'Leary
Annamarie B. Prewett
Assignee (at issue)
Osteotech, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.