Granted Patent
Utility
US 6,652,548 · App. 09/823,652
Expansible shearing catheters for thrombus removal
Inventors:
Michael A. Evans, Denise Demarais, Stephen A. Leeflang, Christian S. Eversull
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Mar 30, 2001
Inventors
Michael A. Evans
Denise Demarais
Stephen A. Leeflang
Christian S. Eversull
Assignee (at issue)
Bacchus Vascular 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.