Granted Patent
Utility
US 6,254,572 · App. 09/447,101
Medical fluid injector having watchdog circuit
Inventors:
James E. Knipfer, Mitchell G. Stern
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Nov 22, 1999
Inventors
James E. Knipfer
Mitchell G. Stern
Assignee (at issue)
LIEBEL-FLARSHEIM COMPANY LLC
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.