Granted Patent
Utility
US 5,197,660 · App. 07/880,305
Twin package carton
Inventor:
Keith J. Colling
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: May 5, 1992
Inventor
Keith J. Colling
Assignee (at issue)
Inland Container 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.