Granted Patent
Utility
US 4,493,711 · App. 06/392,279
Tubular extrusion catheter
Inventors:
Albert K. Chin, Thomas J. Fogarty
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Jun 25, 1982
Inventors
Albert K. Chin
Thomas J. Fogarty
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.