Granted Patent
Utility
US 6,019,747 · App. 08/957,970
Spring-actuated infusion syringe
Inventor:
Charles J. McPhee
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Oct 21, 1997
Inventor
Charles J. McPhee
Assignee (at issue)
I-Flow Corporation
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.