Granted Patent
Utility
US 5,478,342 · App. 08/268,281
Reversible bone screw lock
Inventor:
Douglas W. Kohrs
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Jun 30, 1994
Inventor
Douglas W. Kohrs
Assignee (at issue)
Spin Tech, 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.