Granted Patent
Utility
US 5,019,082 · App. 07/127,208
Rasp-like reaming instrument
Inventors:
Otto Frey, Rudolf Koch
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Dec 1, 1987
Inventors
Otto Frey
Rudolf Koch
Assignee (at issue)
Sulzer Brothers Limited
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.