Granted Patent
Utility
US 4,266,713 · App. 06/088,637
Unitary double cavity carton
Inventor:
Raymond V. Maroszek
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Oct 26, 1979
Inventor
Raymond V. Maroszek
Assignee (at issue)
American Can 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.