Granted Patent
Utility
US 5,911,577 · App. 09/169,386
Disposable prophy angle
Inventor:
Steven R. Henrikson
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Oct 9, 1998
Inventor
Steven R. Henrikson
Assignee (at issue)
Team Technologies, 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.