Resources Contact Us Home
Collapsible sofa bed mattress

Image Number 5 for United States Patent #5551104.

A mattress of a sofa bed contains a portion which is collapsible and portions which are conventional and non-collapsible. The collapsible and non-collapsible portions are hinged to fold within a sofa bed frame.

  Recently Added Patents
Multi-room user interface
System and method for the analysis of biodiesel
Apparatus and method for foreground detection
Peer-to-peer, internet protocol telephone system with proxy interface for configuration data
Systems and methods to provide report part via a web service
Drug delivery system
Reuse of static image data from prior image frames to reduce rasterization requirements
  Randomly Featured Patents
Compressing massive relational data
Smoker's accessory
Video surveillance system
Engine control system for construction machine
System for copying IOBS from FIFO into I/O adapter, writing data completed IOB, and invalidating completed IOB in FIFO for reuse of FIFO
Signal processing method and sound source data forming apparatus
Reversable electrically alterable amplifier configurations
Light emitting diode
Signal processing integrated circuit device
Switching of logic data signals