Granted Patent
Utility
US 6,409,507 · App. 09/678,802
Drive mechanism for oscillatory dental tool with improved bushing
Inventors:
Robert T. Postal, Robert P. Wallace
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Oct 3, 2000
Inventors
Robert T. Postal
Robert P. Wallace
Assignee (at issue)
Twist2It, 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.