Granted Patent
Utility
US 4,457,301 · App. 06/389,834
Intramedullary fixation device
Inventor:
Peter S. Walker
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Jun 18, 1982
Inventor
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.