Granted Patent
Utility
US 4,877,949 · App. 06/894,689
Hand-held instant bar code reader system with automated focus based on distance measurements
Inventors:
Arvin D. Danielson, Dennis A. Durbin
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: Aug 8, 1986
Inventors
Arvin D. Danielson
Dennis A. Durbin
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.