Granted Patent
Utility
US 4,984,072 · App. 07/222,543
System and method for color image enhancement
Inventor:
Barry Sandrew
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Jul 25, 1988
Inventor
Barry Sandrew
Assignee (at issue)
American Film 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.