Granted Patent
Utility
US 4,657,544 · App. 06/601,676
Cardiovascular graft and method of forming same
Inventor:
Leonard Pinchuk
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Apr 18, 1984
Inventor
Leonard Pinchuk
Assignee (at issue)
CORDIS CORPORATION
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.