Granted Patent
Utility
US 5,758,664 · App. 08/663,003
Method of maintaining a left ventricular assist device
Inventors:
Michael L. Campbell, John R. Daugherty, Edward E. Shaw, Pete L. Villalpando
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Jun 6, 1996
Inventors
Michael L. Campbell
John R. Daugherty
Edward E. Shaw
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.