Granted Patent
Utility
US 4,485,923 · App. 06/381,138
Stackable container
Inventor:
Ralph A. Schwaikert
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: May 24, 1982
Inventor
Ralph A. Schwaikert
Assignee (at issue)
RASCO GMBH
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.