Granted Patent
Utility
US 6,228,055 · App. 08/858,389
Devices for marking and defining particular locations in body tissue
Inventors:
Seth A. Foerster, Fred H. Burbank, Mark A. Ritchart, Elias A. Zerhouni
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: May 19, 1997
Inventors
Seth A. Foerster
Fred H. Burbank
Mark A. Ritchart
Elias A. Zerhouni
Assignee (at issue)
Ethicon Endo-Surgery, 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.