Granted Patent
Utility
US 4,644,178 · App. 06/678,622
Signal processing for optical image sensor
Inventor:
John K. Michalik
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Dec 6, 1984
Inventor
John K. Michalik
Assignee (at issue)
Warner Lambert Technologies, 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.