Granted Patent
Utility
US 6,689,966 · App. 09/812,900
System and method for determining positional information
Inventor:
Linus Wiebe
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Mar 21, 2001
Inventor
Linus Wiebe
Assignee (at issue)
Anoto AB
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.