Patent attributes
A transponder intermediary device enables a user to selectively retain a toll transponder device in toll-paying position upon a vehicle. The transponder intermediary device comprises a transponder-receiving slot and a vehicular interface. The transponder-receiving slot comprises a superior slot end, an inferior slot end, laterally-opposed slot ends, an anterior slot portion, a posterior slot portion, an inner slot surface, and a relaxed equilibrium position. The inner slot surface is sized and shaped to snugly and removably receive transponder housing. The vehicular interface comprises certain attachment structure for attaching the transponder intermediary device in toll-paying position upon the vehicle. As the transponder housing is received in the transponder-receiving slot, the housing snap-clicks into place, thus aurally alerting the user as to when the housing is securely held by the transponder intermediary device.