Granted Patent
Utility
US 6,505,984 · App. 09/843,537
Crayon with eraser
Inventors:
David Scott Smith, Douglas Brand, Vito Niosi, Robert S. Volk
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Apr 27, 2001
Inventors
David Scott Smith
Douglas Brand
Vito Niosi
Robert S. Volk
Assignee (at issue)
BINNEY & SMITH 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.