Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Keyswitch controller
Method of purifying crude acetone stream
Three-term predictive adder and/or subtracter
Method and device for peer arrangement in single substream upload P2P overlay networks
Ionization device, mass spectrometer including the ionization device, and image generation system including the ionization device
Communication apparatus, integrated circuit, and communication method
Methods and systems for motion estimation with nonlinear motion-field smoothing
  Randomly Featured Patents
TFT with improved light sensing and TFT substrate using the same and liquid crystal display
Digital multimedia jukebox
Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining
Guanidines
Electrode connector system
Ink container and ink container holder
Preparation of highly branched chain oligomers
Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signal
Spinning or twisting machine control system
Software deployment system