Granted Patent
Utility
US 5,207,672 · App. 07/641,457
Instrument and method for intraluminally relieving stenosis
Inventors:
Robert A. Roth, Michael A. Martinelli
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Jan 14, 1991
Inventors
Robert A. Roth
Michael A. Martinelli
Assignee (at issue)
Intra-Sonix, 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.