Granted Patent
Utility
US 4,550,447 · App. 06/520,027
Vascular graft prosthesis
Inventors:
Louis Seiler, Jr., Robert F. Rosenbluth
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Aug 3, 1983
Inventors
Louis Seiler, Jr.
Robert F. Rosenbluth
Assignee (at issue)
Shiley Incorporated
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.