Granted Patent
Utility
US 4,526,175 · App. 06/468,203
Double lumen dilatation catheter
Inventors:
Albert K. Chin, Thomas B. Kinney
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Feb 22, 1983
Inventors
Albert K. Chin
Thomas B. Kinney
Assignee (at issue)
Thomas J. Fogarty
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.