Granted Patent
Utility
US 4,539,002 · App. 06/401,098
Control apparatus for trailing edge folder in carton folding machine
Inventor:
Chet Zak
Patented Case
View Patent ↗
Granted: Sep 3, 1985
Filed: Jul 23, 1982
Inventor
Chet Zak
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.