Granted Patent
Utility
US 4,648,537 · App. 06/778,956
Dispenser carton with dual interdigitating cutting edges
Inventor:
Johann R. Battig
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Sep 23, 1985
Inventor
Johann R. Battig
Assignee (at issue)
THE DOW CHEMICAL COMPANY
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.