Granted Patent
Utility
US 4,716,900 · App. 06/861,692
Intraintestinal bypass graft
Inventors:
Biagio Ravo, Thomas E. Sloane, Jr., Christine L. Regan
Patented Case
View Patent ↗
Granted: Jan 5, 1988
Filed: May 9, 1986
Inventors
Biagio Ravo
Thomas E. Sloane, Jr.
Christine L. Regan
Assignee (at issue)
Pfizer Hospital Products Group, Inc.
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.