(under the class definition) Subject matter wherein a cover is made of supple material which retards the transfer of heat through the cover.
SEE OR SEARCH CLASS
122, Liquid Heaters and Vaporizers,
494, for a nonelectric water heater having an insulating cover.
215, Bottles and Jars,
12.1, for multilayer barrier structure for a bottle or jar which may retard the transfer of heat.
219, Electric Heating,
281+, for an electric water heater having an insulating cover. 220, Receptacles,
560.12+, and 592.01+ for a container having an insulated wall, 495.01+, 23.9, and 23.91 for a container having a lining or jacket which may be insulating, and subclass 903 for a cross-reference art collection of insulating jackets
for beverage containers.
229, Envelopes, Wrappers, and Paperboard Boxes,
103.11, for a thermally insulated paperboard box and subclass 164.1 for a paperboard box having a flexible or flaccid covering.
383, Flexible Bags,
901, for a cross-reference art collection of hot water or ice bag covers.
428, Stock Material or Miscellaneous Articles, various subclasses for sheet material which may retard the transfer of heat.
