Resources Contact Us Home
Browse by Category: Main > Household
Class Information
Number: 4/210
Name: Baths, closets, sinks, and spittoons > Ventilation > Railway car
Description: Devices for ventilating railway-car closets.

Patents under this class:

Patent Number Title Of Patent Date Issued
6247191 Locomotive sanitation apparatus and method of protecting the same from freezing Jun. 19, 2001
5630233 Vehicle toilet vent apparatus May. 20, 1997
5369811 Vacuum toilet system with odor filter Dec. 6, 1994

  Recently Added Patents
Idle stop and go system and method for controlling thereof
Optical sensor and electronic apparatus
Architecture, system and method for testing resistive type memory
Output device, source apparatus, television set, system, output method, program, and recording medium
Insulated container sleeve
Gas sensor with a porous layer that detectably affects a surface lattice resonant condition of a nanoparticle array
System and method for associating financial transaction data with a user's project data using a portable electronic device
  Randomly Featured Patents
Carton having an opening feature and a carton blank
Gamma adjustment with error diffusion for electrophoretic displays
Selective neurokinin antagonists
Method for transmitting data between a read/write device and a data memory, use of the method in an identification system and a read/write device and mobile data memory for an identification s
Electrically conductive silicone compositions
Voltage profile charge control system
Device for the production of glass drops from a glass melt containing radioactive waste
Mode setting device for camera
Method for determining the approximate resonance frequency of a structure surrounded by a compressible fluid
System and method for managing debt collection using clustering