Granted Patent
Utility
US 4,944,745 · App. 07/162,003
Perfusion balloon catheter
Inventors:
David J. Sogard, Scott Savitt
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Feb 29, 1988
Inventors
David J. Sogard
Scott Savitt
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.