Granted Patent
Utility
US 4,915,228 · App. 07/228,074
One step dressing delivery system
Inventor:
Owen L. Johns
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Aug 4, 1988
Inventor
Owen L. Johns
Assignee (at issue)
Smith & Nephew United, 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.