Granted Patent
Utility
US 5,647,852 · App. 08/382,302
Lavage system including a cassette assembly
Inventor:
Robert W. Atkinson
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Jan 31, 1995
Inventor
Robert W. Atkinson
Assignee (at issue)
Zimmer, 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.