Granted Patent
Utility
US 6,494,866 · App. 09/826,584
Syringe plunger rod and method of manufacture
Inventor:
Philip J. Robinson
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Apr 5, 2001
Inventor
Philip J. Robinson
Assignee (at issue)
Owens-Illinois Closure 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.