Granted Patent
Utility
US 5,748,802 · App. 08/376,377
Method and apparatus for the analysis and correction of the image gradation in image originals
Inventor:
Kurt-Helfried Winkelman
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Jan 23, 1995
Inventor
Kurt-Helfried Winkelman
Assignee (at issue)
Linotype-Hell AG
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.