Granted Patent
Utility
US 6,428,509 · App. 09/362,970
Syringe plunger driver system and method
Inventor:
Paul David Fielder
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jul 29, 1999
Inventor
Paul David Fielder
Assignee (at issue)
Alaris 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.