Triangular car top sign

Claim 1

A sign holder for temporary attachment to the roof of a vehicle in which a plurality of said sign holders can be nested for storage without damage thereto comprising: (a) a unitary molded three dimensional hollow structure having (i) a horizontal triangular base flange having vertical edges and a stepped edge flange continuously around the periphery thereof, said base flange having a triangular opening therein, (ii) a hollow truncated pyramid having a triangular base and vertical edges, the sides of said truncated pyramid having a trapezoidal shape for holding a sign, said triangular base contiguous and integral with said base flange along said opening, (iii) a top surface contiguous to and integral with the top edges of said truncated pyramid, and (iv) a fin integral with each corner of said base flange tapering upward contiguous to and integral with each of said vertical edges of said truncated pyramid; (b) a suction cup attached to and below each corner of said base flange, each of said cups positioned to contact one of said fins of another one of said sign holders when said sign holder is nested over said other one to maintain separation between said sign holder and said other sign holder for storage thereof.