Patent ID: 7134569

Claim:
A disposable lid for a drinking cup comprising; an annular mounting portion for scalingly engaging a brim of the drinking cup; a substantially planar medial portion for covering an opening of the drinking cup; a recess having at least two side walls, said side walls extending from said planar medial portion and converging toward one another forming an apex; wherein said at least two side walls extend towards said apex at different angles with respect to a vertical plane of said recess including said apex; wherein said at least two side walls converge together at a frangible portion formed in a deepest portion of the recess, and wherein a thickness of the lid material at the frangible portion is thinner than the lid material in other portions of the lid thereby allowing the frangible portion to be ruptured by a force exerted by an end of a straw as it is inserted into the frangible portion.