Granted Patent
Utility
US 5,331,995 · App. 07/916,344
Flow control system for medical ventilator
Inventors:
Thomas Westfall, Alberto Ruiz-Vela, Anthony J. Caterina, Clyde R. Visser
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Jul 17, 1992
Inventors
Thomas Westfall
Alberto Ruiz-Vela
Anthony J. Caterina
Clyde R. Visser
Assignee (at issue)
Bear 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.