Granted Patent
Utility
US 6,290,650 · App. 09/321,907
Tonometry system for monitoring blood pressure
Inventors:
Robert D. Butterfield, Kenneth J. Pytel, Charles R. Holdaway, Stephen A. Martin
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: May 28, 1999
Inventors
Robert D. Butterfield
Kenneth J. Pytel
Charles R. Holdaway
Stephen A. Martin
Assignee (at issue)
Alaris Medical Systems, 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.