Granted Patent
Utility
US 5,258,002 · App. 07/982,260
Dual tapered surgical knife
Inventors:
Mark J. Jeffers, Michael S. O'Neil, Luther A. Hoffman
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Nov 25, 1992
Inventors
Mark J. Jeffers
Michael S. O'Neil
Luther A. Hoffman
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.