Granted Patent
Utility
US 5,217,477 · App. 07/833,196
Dual width surgical knife
Inventor:
Paul H. Lager
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Feb 10, 1992
Inventor
Paul H. Lager
Assignee (at issue)
Alcon Surgical, 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.