Granted Patent
Utility
US 4,482,923 · App. 06/245,643
Method for autotypical tonal value analysis
Inventors:
Gerhard Fischer, Karl Scheuter
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Mar 31, 1981
Inventors
Gerhard Fischer
Karl Scheuter
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.