Granted Patent
Utility
US 5,427,118 · App. 08/131,793
Ultrasonic guidewire
Inventors:
Henry Nita, Douglas H. Gesswein, John H. S. Wang, Timothy C. Mills
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Oct 4, 1993
Inventors
Henry Nita
Douglas H. Gesswein
John H. S. Wang
Timothy C. Mills
Assignee (at issue)
Baxter International 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.