US PATENT SUBCLASS 126 / 263.1
.~.~.~.~ Including time release coating on solid in contact with liquid

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

*  DD  HEATERS {7}
263.01  DF  .~ Chemical {3}
263.05  DF  .~.~ Liquid in contact with solid (e.g., water and lime) {1}
263.06  DF  .~.~.~ Including separate solid and liquid compartments {3}
263.1.~.~.~.~ Including time release coating on solid in contact with liquid

DEFINITION

Classification: 126/263.1

Including time release coating on solid in contact with liquid:

(under subclass 263.06) Subject matter wherein the solid substance includes a covering made of material which when brought into contact with the liquid substance slows down a rate of penetration of the liquid substance into the solid substance, thereby, prolonging a duration of release of heat.