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Class Information
Number: D23/392
Name: Environmental heating and cooling; fluid handling and sanitary equipment > Heating or cooling > Element or attachment, not elsewhere specified > Flow director (29) > Register or diffuser > Adjustable louver or damper
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| D521146 |
Vehicle smoke vent |
May. 16, 2006 |
| D506003 |
Air flow directing and controlling fixture for heating, air conditioning and ventilation devices |
Jun. 7, 2005 |
| D493881 |
Dual-slat register for a fan tray |
Aug. 3, 2004 |
| D468417 |
Vent |
Jan. 7, 2003 |
| D452556 |
Apertured air conditioner panel with movable door |
Dec. 25, 2001 |
| D379502 |
Air diffuser for discharge ducts of air distribution systems |
May. 27, 1997 |
| D329090 |
Exhaust collar for a wood burning unit |
Sep. 1, 1992 |
| D327540 |
Exhaust collar for a wood burning unit |
Jun. 30, 1992 |
| D307632 |
Air flow directing and controlling fixture for heating and ventilating devices |
May. 1, 1990 |
| D300777 |
Ceiling-mounted outlet box for conditioned air |
Apr. 18, 1989 |
| D288959 |
Fixture for heating and ventilating devices including a louvered flap ventilator arrangement for selectively directing and controlling air flow |
Mar. 24, 1987 |
| D286563 |
Back draft shutter |
Nov. 4, 1986 |
| D285480 |
Fixture for heating and ventilating devices |
Sep. 2, 1986 |
| D283837 |
Vent louver |
May. 13, 1986 |
| D281451 |
Vent for clothes dryer |
Nov. 19, 1985 |
| D275988 |
Ceiling air diffuser or the like |
Oct. 16, 1984 |
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