Granted Patent
Utility
US 6,136,017 · App. 09/296,190
One handed instrument for spreading a heart valve
Inventors:
Joseph N. Craver, Louis A. Campbell
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Apr 23, 1999
Inventors
Joseph N. Craver
Louis A. Campbell
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.