Granted Patent
Utility
US 4,844,064 · App. 07/103,885
Surgical cutting instrument with end and side openings
Inventors:
James A. Thimsen, Terry L. Whipple, Richard B. Caspari
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Sep 30, 1987
Inventors
James A. Thimsen
Terry L. Whipple
Richard B. Caspari
Assignee (at issue)
Baxter Travenol Laboratories, 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.