Granted Patent
Utility
US 5,964,400 · App. 08/876,005
Multi-layered insulated cup formed from folded sheet
Inventors:
Richard F. Varano, Claus E. Sadlier
Patented Case
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Granted: Oct 12, 1999
Filed: Jun 13, 1997
Inventors
Richard F. Varano
Claus E. Sadlier
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.