Granted Patent
Utility
US 4,839,233 · App. 07/037,043
Medical grade film and method of sterilizing the same and sterilized medical grade film
Inventor:
Arthur A. Arena
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Apr 10, 1987
Inventor
Arthur A. Arena
Assignee (at issue)
Huls America 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.