Granted Patent
Utility
US 4,493,709 · App. 06/342,100
Metering device for intravenous fluids
Inventor:
Gordon E. Smith
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Jan 25, 1982
Inventor
Gordon E. Smith
Assignee (at issue)
Quest Medical, 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.