Granted Patent
Utility
US 4,563,853 · App. 06/636,830
Packaging machine
Inventor:
Rodney K. Calvert
Patented Case
View Patent ↗
Granted: Jan 14, 1986
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.