Granted Patent
Utility
US 4,479,497 · App. 06/440,824
Double lumen dilatation catheter
Inventors:
Thomas J. Fogarty, Albert K. Chin
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Nov 12, 1982
Inventors
Thomas J. Fogarty
Albert K. Chin
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.