Granted Patent
Utility
US 5,683,247 · App. 08/515,825
Permanently lubricated dental prophylaxis angle
Inventor:
Ronald L. Bailey
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Aug 16, 1995
Inventor
Ronald L. Bailey
Assignee (at issue)
Young Dental Manufacturing Company 1, LLC
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.