Granted Patent
Utility
US 6,478,192 · App. 09/819,442
Diluent change over dispense apparatus
Inventor:
Keith James Heyes
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Mar 28, 2001
Inventor
Keith James Heyes
Assignee (at issue)
IMI Cornelius, 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.