Granted Patent
Utility
US 5,697,936 · App. 08/433,820
Device for removing an elongated structure implanted in biological tissue
Inventors:
Frederick J. Shipko, Chun Kee Lui
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: May 4, 1995
Inventors
Frederick J. Shipko
Chun Kee Lui
Assignee (at issue)
Cook Pacemaker Corporation
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.