Granted Patent
Utility
US 4,577,235 · App. 06/642,605
Text/continuous tone image decision processor
Inventors:
Henry N. Kannapell, Paul G. Nietfeld
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: Aug 20, 1984
Inventors
Henry N. Kannapell
Paul G. Nietfeld
Assignee (at issue)
The Mead Corporation
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.