Granted Patent
Utility
US 5,868,713 · App. 08/832,104
Pneumatic retractable syringe
Inventor:
John Klippenstein
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Apr 3, 1997
Inventor
John Klippenstein
Assignee (at issue)
L.O.M. Laboratories 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.