Granted Patent
Utility
US 5,971,990 · App. 09/063,154
System for introducing and positioning expandable stents
Inventor:
Andrea Venturelli
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Apr 20, 1998
Inventor
Andrea Venturelli
Assignee (at issue)
Invatec S.r.l.
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.