Granted Patent
Utility
US 6,674,427 · App. 09/676,893
Position determination II—calculation
Inventors:
Mats Petter Pettersson, Tomas Edso
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Oct 2, 2000
Inventors
Mats Petter Pettersson
Tomas Edso
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.