Granted Patent
Utility
US 4,639,606 · App. 06/665,276
Bar code scanner laser radiation exposure limit control system
Inventors:
John A. Boles, Jay M. Eastman
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Oct 26, 1984
Inventors
John A. Boles
Jay M. Eastman
Assignee (at issue)
Optel Systems 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.