Granted Patent
Utility
US 6,485,502 · App. 09/803,641
Vascular embolism prevention device employing filters
Inventors:
T. Anthony Don Michael, Peter Besselink
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Mar 12, 2001
Inventors
T. Anthony Don Michael
Peter Besselink
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.