Granted Patent
Utility
US 6,471,709 · App. 09/449,006
Expandable ring percutaneous tissue removal device
Inventors:
Natalie V. Fawzi, D. Laksen Sirimanne, George D. Hermann, Douglas Sutton, Thomas A. Howell
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: Nov 24, 1999
Inventors
Natalie V. Fawzi
D. Laksen Sirimanne
George D. Hermann
Douglas Sutton
Thomas A. Howell
Assignee (at issue)
Vivant Medical, 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.