Granted Patent
Utility
US 5,921,957 · App. 08/274,071
Intravascular dilation catheter
Inventors:
Douglas P. Killion, David W. Lodin
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Jul 12, 1994
Inventors
Douglas P. Killion
David W. Lodin
Assignee (at issue)
Scimed Life Systems, 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.