Granted Patent
Utility
US 5,931,797 · App. 08/997,578
Medical pumping apparatus
Inventors:
David M. Tumey, Robert L. Cartmell, Timothy J. Riazzi, David B. McQuain, Abdou F. DeBan
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Dec 23, 1997
Inventors
David M. Tumey
Robert L. Cartmell
Timothy J. Riazzi
David B. McQuain
Abdou F. DeBan
Assignee (at issue)
Kinetic Concepts, 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.