Granted Patent
Utility
US 5,601,541 · App. 08/359,486
Footstand for chest drainage unit
Inventor:
David Rork Swisher
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Dec 20, 1994
Inventor
David Rork Swisher
Assignee (at issue)
Sherwood Medical Company
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.