Granted Patent
Utility
US 5,649,622 · App. 08/222,915
Locking safety needle protection system
Inventor:
William H. Hollister
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Apr 5, 1994
Inventor
William H. Hollister
Assignee (at issue)
Smiths Industries Medical Systems, 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.