Granted Patent
Utility
US 6,445,384 · App. 08/941,638
Electronic whiteboard system eraser
Inventors:
Stephen Atwood, Bernard O. Geaghan
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Sep 30, 1997
Inventors
Stephen Atwood
Bernard O. Geaghan
Assignee (at issue)
Greensteel, 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.