Granted Patent
Utility
US 4,197,979 · App. 05/884,615
Partitioned carton
Inventor:
Daniel P. Dutcher
Patented Case
View Patent ↗
Granted: Apr 15, 1980
Filed: Mar 8, 1978
Inventor
Daniel P. Dutcher
Assignee (at issue)
Champion International Corporation Limited
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.