Granted Patent
Utility
US 5,647,380 · App. 08/484,254
Method of making a left ventricular assist device
Inventors:
Michael L. Campbell, John R. Daugherty, Pete L. Villalpando
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Jun 7, 1995
Inventors
Michael L. Campbell
John R. Daugherty
Pete L. Villalpando
Assignee (at issue)
W. L. Gore & Associates, 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.