Granted Patent
Utility
US 6,679,871 · App. 09/751,445
Inflatable cannula and method of using same
Inventor:
Kevin F. Hahnen
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Dec 29, 2000
Inventor
Kevin F. Hahnen
Assignee (at issue)
Edwards Lifesciences Corporation
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.