Granted Patent
Utility
US 6,371,294 · App. 09/710,616
Electric toothbrush
Inventors:
Lawrence A. Blaustein, John R. Nottingham, John Osher, John W. Spirk, Douglas A. Gall
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Nov 9, 2000
Inventors
Lawrence A. Blaustein
John R. Nottingham
John Osher
John W. Spirk
Douglas A. Gall
Assignee (at issue)
The Procter & Gamble Company
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.