US PATENT SUBCLASS 60 / 300
.~.~.~ Having a means for heating the catalyst

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


60 /   HD   POWER PLANTS

272  DF  INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
282  DF  .~ By means producing a chemical reaction of a component of the exhaust gas {13}
299  DF  .~.~ Using a catalyst {3}
300.~.~.~ Having a means for heating the catalyst

DEFINITION

Classification: 60/300

(under subclass 299) Apparatus with an external means for supplying heat to the catalyst to raise it to an operative temperature.