Granted Patent
Utility
US 6,652,556 · App. 09/697,628
Filter apparatus for ostium of left atrial appendage
Inventors:
Robert A. VanTassel, Robert G. Hauser, Robert S. Schwartz, David Holmes, Gregg Sutton, Thomas E. Borillo, Jeffrey Welch
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Oct 26, 2000
Inventors
Robert A. VanTassel
Robert G. Hauser
Robert S. Schwartz
David Holmes
Gregg Sutton
Thomas E. Borillo
Jeffrey Welch
Assignee (at issue)
Atritech, 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.