Granted Patent
Utility
US 4,520,612 · App. 06/462,163
Packaging machine
Inventor:
Rolf Muller
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Jan 31, 1983
Inventor
Rolf Muller
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.