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
LED drive circuit
Azole derivatives, methods for producing the same, intermediate thereof, agro-horticultural agents
Process for shaping polymeric articles
Systems and methods for determining muscle force through dynamic gain optimization of a muscle PID controller for designing a replacement prosthetic joint
Commissioning incoming packet switched connections
Method for generating multi-antenna signals
Advanced joint detection in a TD-SCDMA system
  Randomly Featured Patents
Direct conversion receiver
Method for numerical position control of motor-driven shafts
Ultra-high speed database replication with multiple audit logs
Dual polarization patch antenna
Hand, wrist, and forearm friction resistance exercise device
Container for purifying water by utilization of sunlight
Sound inhibitor baffles
Long wavelength thiol-reactive fluorophores
Symmetric and complementary differential amplifier
Skate light assembly