Granted Patent
Utility
US 4,264,017 · App. 06/068,179
Container shape
Inventors:
Richard J. Karas, Guy Richards, Earl R. Van Alsburg
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Aug 20, 1979
Inventors
Richard J. Karas
Guy Richards
Earl R. Van Alsburg
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.