Granted Patent
Utility
US 6,577,299 · App. 09/376,837
Electronic portable pen apparatus and method
Inventors:
Illya Schiller, Arkady Pittel
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Aug 18, 1999
Inventors
Illya Schiller
Arkady Pittel
Assignee (at issue)
Digital Ink, 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.