Granted Patent
Utility
US 5,458,568 · App. 08/123,374
Porous balloon for selective dilatation and drug delivery
Inventors:
Joel Racchini, James Edward Shapland, Mark B. Knudson, Jin Shimada, Keith R. Hildebrand
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Sep 17, 1993
Inventors
Joel Racchini
James Edward Shapland
Mark B. Knudson
Jin Shimada
Keith R. Hildebrand
Assignee (at issue)
Cortrak Medical, 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.