Granted Patent
Utility
US 6,425,921 · App. 09/569,730
Sliding partners for artificial joint implants
Inventors:
Hans Grundei, Wolfram Thomas
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: May 12, 2000
Inventors
Hans Grundei
Wolfram Thomas
Assignee (at issue)
ESKA IMPLANTS 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.