Granted Patent
Utility
US 6,730,128 · App. 10/123,855
Prosthetic knee joint
Inventor:
Albert H. Burstein
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Apr 16, 2002
Inventor
Albert H. Burstein
Assignee (at issue)
Exactech, 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.