Granted Patent
Utility
US 5,645,559 · App. 08/172,516
Multiple layer stent
Inventors:
Steven W. Hachtman, Liann M. Johnson, Scott T. Johnson, Joseph E. Laptewicz, Jr., Paul J. Thompson, Amjad Ahmad, John A. Scholl, Richard J. Thompson
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Dec 21, 1993
Inventors
Steven W. Hachtman
Liann M. Johnson
Scott T. Johnson
Joseph E. Laptewicz, Jr.
Paul J. Thompson
Amjad Ahmad
John A. Scholl
Richard J. Thompson
Assignee (at issue)
Schneider (USA) 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.