Granted Patent
Utility
US 4,638,811 · App. 06/216,189
Vascular interface
Inventors:
Jose Bisera, James H. Carrington, Max Harry Weil
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Dec 15, 1980
Inventors
Jose Bisera
James H. Carrington
Max Harry Weil
Assignee (at issue)
Institute of Critical Care Medicine
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.