Granted Patent
Utility
US 6,231,561 · App. 09/399,521
Method and apparatus for closing a body lumen
Inventors:
Andrew Frazier, Erik van der Burg, Michael D. Lesh
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Sep 20, 1999
Inventors
Andrew Frazier
Erik van der Burg
Michael D. Lesh
Assignee (at issue)
Appriva 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.