Granted Patent
Utility
US 4,687,997 · App. 06/623,401
Container with safety features for cleansing medical devices
Inventor:
Frank Tao
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Jun 22, 1984
Inventor
Frank Tao
Assignee (at issue)
Coopervision, 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.