Granted Patent
Utility
US 5,019,029 · App. 07/434,190
Machine for erecting sleeve type cartons
Inventor:
Rodney K. Calvert
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Nov 13, 1989
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.