Granted Patent
Utility
US 4,756,408 · App. 07/084,280
Sloped display carton
Inventor:
Karl L. Grauf
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Aug 10, 1987
Inventor
Karl L. Grauf
Assignee (at issue)
Manville 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.