Granted Patent
Utility
US 6,238,213 · App. 09/619,174
Suction oral brush
Inventors:
Charles E. Young, Richard A. Rude, Paul H. Hanifl
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Jul 19, 2000
Inventors
Charles E. Young
Richard A. Rude
Paul H. Hanifl
Assignee (at issue)
Sage Products, 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.