Granted Patent
Utility
US 4,554,778 · App. 06/636,831
Packaging machine and method
Inventor:
Rodney K. Calvert
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Aug 1, 1984
Inventor
Rodney K. Calvert
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.