Granted Patent
Utility
US 4,822,362 · App. 07/052,033
Process and apparatus for tibial plateau compenent
Inventors:
Peter S. Walker, Frederick C. Ewald
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: May 19, 1987
Inventors
Peter S. Walker
Frederick C. Ewald
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.