Granted Patent
Utility
US 5,468,950 · App. 08/281,884
Chromatic ranging method and apparatus for reading optically readable information over a substantial range of distances
Inventor:
George E. Hanson
Patented Case
View Patent ↗
Granted: Nov 21, 1995
Filed: Jul 28, 1994
Inventor
George E. Hanson
Assignee (at issue)
Norand Corporation
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.