Granted Patent
Utility
US 6,652,492 · App. 09/911,131
Dual valve, flexible sheath and method
Inventors:
Paul Bell, Doug Izuno, Michael Fourkas
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Jul 23, 2001
Inventors
Paul Bell
Doug Izuno
Michael Fourkas
Assignee (at issue)
Endovascular Technologies, 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.