Granted Patent
Utility
US 6,424,340 · App. 09/916,558
Marking device for electronic presentation board
Inventors:
Rafi Holtzman, Isaac Zloter
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jul 26, 2001
Inventors
Rafi Holtzman
Isaac Zloter
Assignee (at issue)
Tidenet, 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.