Granted Patent
Utility
US 5,147,325 · App. 07/695,365
Rigid needle shield
Inventors:
Jay F. Mitchell, Roger L. Crouse, Herbert W. Lesher
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: May 3, 1991
Inventors
Jay F. Mitchell
Roger L. Crouse
Herbert W. Lesher
Assignee (at issue)
Sherwood Medical Company
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.