Granted Patent
Utility
US 6,497,680 · App. 09/464,812
Method for compensating for pressure differences across valves in cassette type IV pump
Inventors:
Peter A. Holst, David A. Krajewski, Rudolph J. Maske
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Dec 17, 1999
Inventors
Peter A. Holst
David A. Krajewski
Rudolph J. Maske
Assignee (at issue)
Abbott Laboratories
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.