Granted Patent
Utility
US 5,123,421 · App. 07/642,185
Liquid activated steerable catheter guidewire
Inventor:
Edward L. Sinofsky
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Jan 16, 1991
Inventor
Edward L. Sinofsky
Assignee (at issue)
C. R. Bard, 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.