Granted Patent
Utility
US 5,868,721 · App. 08/850,220
Injection device having anti-coring needle
Inventors:
Robert A. Marinacci, William Robert Pearson, David Edward Spady, N. Lawrence Dalling
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: May 1, 1997
Inventors
Robert A. Marinacci
William Robert Pearson
David Edward Spady
N. Lawrence Dalling
Assignee (at issue)
Meridian Medical Technologies, 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.