Granted Patent
Utility
US 5,571,013 · App. 08/221,693
Integral bur tube and bearing assembly
Inventor:
Eugene Novak
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Mar 31, 1994
Inventor
Eugene Novak
Assignee (at issue)
Dentsply Research and Development Corp.
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.