Granted Patent
Utility
US 4,917,698 · App. 07/290,001
Multi-segmented annuloplasty ring prosthesis
Inventors:
Alain F. Carpentier, Hung L. Lam, Than Nguyen
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Dec 22, 1988
Inventors
Alain F. Carpentier
Hung L. Lam
Than Nguyen
Assignee (at issue)
Baxter International 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.