Coldspot was Sears' private label brand of refrigerators, freezers and air-conditioners. The first refrigerators were introduced in May 1930. These were Sears' first electric models, as all previous "refrigerators" were simple iceboxes. Coldspot units were built by the aforementioned Upton-Nineteen Hundred-Whirlpool conglomerate. Sears retired the Coldspot brand in 1976. Following this, the Kenmore name was used for all large appliances.