Granted Patent
Utility
US 5,221,281 · App. 07/906,591
Electrosurgical tubular trocar
Inventor:
Michael S. Klicek
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Jun 30, 1992
Inventor
Michael S. Klicek
Assignee (at issue)
Valleylab, 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.