Granted Patent
Utility
US 6,139,319 · App. 08/986,232
Method and device for the cleansing and care of the teeth and gums
Inventors:
Michael Sauer, Norbert Schaefer, Michael Stolper
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Dec 5, 1997
Inventors
Michael Sauer
Norbert Schaefer
Michael Stolper
Assignee (at issue)
The Braun Corporation
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.