Granted Patent
Utility
US 5,141,521 · App. 07/521,152
Hip joint prosthesis shank
Inventor:
Ulrich Wenner
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: May 8, 1990
Inventor
Ulrich Wenner
Assignee (at issue)
MAN Technologie AG
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.