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
Format for providing traffic information and a method and apparatus for using the format
Digital broadcast receiver and method for processing caption thereof
Fingerprinting apparatus, system, and method
Wireless refrigerant scale platform
System and method for improving text input in a shorthand-on-keyboard interface
Method for the synthesis of an array of metal nanowire capable of supporting localized plasmon resonances and photonic device comprising said array
SONOS stack with split nitride memory layer
  Randomly Featured Patents
Orthopedic chair
Oxazolidinones and methods for the synthesis and use of same
Copper alloy and method of manufacturing the same
Brightness enhancement film
Lossless feedback double-balance active mixers
Hot/cold pack product and method of making
Variable speed condenser fan control system
Multi-functional medical imaging quality assurance sensor
Reflective bands for roadway barricade barrels and method of use