Granted Patent
Utility
US 6,197,054 · App. 09/144,805
Sutureless cuff for heart valves
Inventors:
James Henry Hamblin, Jr., Billy Ray Singleton
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Sep 1, 1998
Inventors
James Henry Hamblin, Jr.
Billy Ray Singleton
Assignee (at issue)
Sulzer Carbomedics 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.