Resources Contact Us Home
Collapsible sofa bed mattress

Image Number 3 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
System for presenting media services
End to end email monitor
Email certificates
Profiled rail for advertising/display units
Method for preparing an organic film at the surface of solid support under non-electrochemical conditions, solid support thus obtained and preparation kit
Bi-directional, compact, multi-path and free space channel replicator
  Randomly Featured Patents
De-tuned distributed feedback laser diode
Cosmetic/dermatological skin care compositions comprising S-DHEA
Papermakers fabric for corrugation machines
Surgical microscope drape with removable lens assembly
Neuropathic pain treatment method
Television capable of performing reminder function
Method and apparatus for maintaining a redundant database system
Memory, memory operating method, and memory system
Concentrate cartridge
Fertilizer spreader box