Granted Patent
Utility
US 5,345,927 · App. 08/029,695
Arthroscopic retractors
Inventor:
Peter M. Bonutti
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Mar 11, 1993
Inventor
Peter M. Bonutti
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.