Granted Patent
Utility
US 4,352,212 · App. 06/161,503
Joint prosthesis
Inventors:
David J. Greene, Peter S. Walker
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Jun 20, 1980
Inventors
David J. Greene
Peter S. Walker
Assignee (at issue)
Howmedica 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.