Granted Patent
Utility
US 4,361,089 · App. 06/198,297
Multi-color rotary press
Inventors:
Eugene W. Wittkopf, Dale D. Leanna
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Oct 20, 1980
Inventors
Eugene W. Wittkopf
Dale D. Leanna
Assignee (at issue)
Magna-Graphics 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.