Characterised by the base backcoat, intermediate, or covering layers

Official title: characterised by the base {backcoat}, intermediate, or covering layers, {e.g. for thermal transfer dye-donor or dye-receiver sheets}; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography {(macromolecular ink- or dye-receptive coatings B41M5/52)}

B41M5/40 (Characterised by the base backcoat, intermediate, or covering layers) appears on 2,677 US grants and 1,539 published applications in this corpus.