Granted Patent
Utility
US 4,533,828 · App. 06/446,712
Arrangement for increasing the dynamic range of optical inspection devices to accommodate varying surface reflectivity characteristics
Inventors:
Paul DiMatteo, Joel Hecker
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Dec 3, 1982
Inventors
Paul DiMatteo
Joel Hecker
Assignee (at issue)
Robotic Vision 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.