Granted Patent
Utility
US 4,976,690 · App. 07/497,812
Variable stiffness angioplasty catheter
Inventors:
Ronald J. Solar, Jonathan Kagan
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Mar 22, 1990
Inventors
Ronald J. Solar
Jonathan Kagan
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.