Granted Patent
Utility
US 6,730,108 · App. 10/397,311
Barrier device for ostium of left atrial appendage
Inventors:
Robert A. Van Tassel, Robert G. Hauser
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Mar 27, 2003
Inventors
Robert A. Van Tassel
Robert G. Hauser
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.