Granted Patent
Utility
US 4,106,129 · App. 05/827,961
Supported bioprosthetic heart valve with compliant orifice ring
Inventors:
Alain F. Carpentier, Ernest Lane
Patented Case
View Patent ↗
Granted: Aug 15, 1978
Filed: Aug 26, 1977
Inventors
Alain F. Carpentier
Ernest Lane
Assignee (at issue)
American Hospital Supply Corp.
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.