Granted Patent
Utility
US 4,258,875 · App. 06/032,118
Container assembly for ice-cream products
Inventor:
John M. Sykora
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Apr 23, 1979
Inventor
John M. Sykora
Assignee (at issue)
Field Container Company, LP.
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.