Granted Patent
Utility
US 5,160,327 · App. 07/708,673
Rotational pressure drive for a medical syringe
Inventor:
Joseph R. Stines
Patented Case
View Patent ↗
Granted: Nov 3, 1992
Filed: May 31, 1991
Inventor
Joseph R. Stines
Assignee (at issue)
Vance Products 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.