Granted Patent
Utility
US 5,951,533 · App. 08/507,592
Ostomy appliance and wound drainage device and method of using the same
Inventor:
Frank Freeman
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Jul 26, 1995
Inventor
Frank Freeman
Assignee (at issue)
E.R. SQUIBB & SONS. 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.