Patent ID: 7451911

Claim:
An insulated cup comprising a top portion and a base sleeve that forms a bottom of the cup; said top portion having a side wall, a top, a bottom, a top opening, a bottom opening and a cavity extending from said top opening to said bottom opening, said top portion including a paper or cardboard material, said side wall of said top portion having an outer surface, said top of said top portion including an outwardly rolled rim; and, said base sleeve formed of a single piece of material, said base sleeve including a corrugated paper or corrugated cardboard material, said base sleeve including a base, a side wall extending upwardly from said base, an upper opening and a cavity extending from an upper surface of said base to said upper opening, said upper surface and said side wall forming an inner surface of said cup, said inner surface of said cavity absent a seam, said base sleeve fitted onto said bottom of said top portion so that said cavity of said base sleeve at least partially telescopically receives said side wall of said top portion and covers and seals said bottom opening of said top portion, said inner surface of said base sleeve connected to said outer surface of said side wall of said top portion and forming a liquid proof seal between said inner surface of said base sleeve and said outer surface of said side wall of said top portion, said inner surface of said base sleeve at least partially connected to said outer surface of said side wall of said top portion by an adhesive or heat created seal, said liquid proof seal at least partially formed by said adhesive or said heat created seal.