Granted Patent
Utility
US 5,970,801 · App. 08/994,501
Variable orifice flow sensor
Inventors:
Calin Ciobanu, Donald Schaeffer
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Dec 30, 1997
Inventors
Calin Ciobanu
Donald Schaeffer
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.