Granted Patent
Utility
US 5,149,948 · App. 07/553,859
Improved bar code reader system for reading bar codes under high specular reflection conditions with a variety of surface effects
Inventor:
Thomas J. Chisholm
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Jul 16, 1990
Inventor
Thomas J. Chisholm
Assignee (at issue)
Computer Identics, Inc.
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.