Granted Patent
Utility
US 5,359,185 · App. 07/945,174
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: Oct 25, 1994
Filed: Sep 14, 1992
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.