Granted Patent
Utility
US 4,721,038 · App. 06/921,748
Station for forming stacks of folded cartons
Inventor:
Charles W. Eldridge
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Oct 22, 1986
Inventor
Charles W. Eldridge
Assignee (at issue)
Post Machinery, Inc.
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.