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
Systems and methods for classifying electronic information using advanced active learning techniques
Implantable device
TC-83-derived alphavirus vectors, particles and methods
Poloxamer foamable pharmaceutical compositions with active agents and/or therapeutic cells and uses
Turbulence sensor and blade condition sensor system
Elastic wave device having a capacitive electrode on the piezoelectric substrate
Media used in digital high speed inkjet web press printing
  Randomly Featured Patents
Method and system for computer aided manufacturing measurement analysis
Door locking apparatus of automobile
Rolling ball connector
Optical element supporting device, exposure apparatus using same, and device manufacturing method
Method for making an abrasion-resistant steel plate and plate obtained
Bottle
Angularly adjustable pipe connector
Automatic storage and retrieval system
Method of maintaining heat transfer capacity in a polymerization reaction system
Cherry pitter