Granted Patent
Utility
US 6,485,306 · App. 09/902,029
Locus-recordable portable handwriting device
Inventor:
Chia-Jui Yeh
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Jul 10, 2001
Inventor
Chia-Jui Yeh
Assignee (at issue)
Aiptek International GmbH
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.