Granted Patent
Utility
US 5,505,372 · App. 08/331,013
Carton blank and carton
Inventors:
Patrick B. Edson, Raymond S. Kastanek
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Oct 28, 1994
Inventors
Patrick B. Edson
Raymond S. Kastanek
Assignee (at issue)
Graphic Packaging 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.