Granted Patent
Utility
US 5,312,430 · App. 07/722,899
Balloon dilation catheter
Inventors:
Robert F. Rosenbluth, Jay A. Lenker, George R. Greene, Jr., Barry M. Calvarese
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Jun 28, 1991
Inventors
Robert F. Rosenbluth
Jay A. Lenker
George R. Greene, Jr.
Barry M. Calvarese
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.