Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 5/17
Name: Beds > Sofa bed > Extension
Description: Devices characterized by one or more bed sections which move out forwardly or backwardly without overturning. Extension sofa beds are mainly of a couch type without back or stuffed ends and resemble a bedstead with very low head and foot boards.










Sub-classes under this class:

Class Number Class Name Patents
5/22 Link walk-over 2
5/18.1 Slidable section 87
5/23 Traversing seat with rotary follower section 2


Patents under this class:

Patent Number Title Of Patent Date Issued
8555431 Linear actuator device Oct. 15, 2013
8468621 Adjustable furniture product with automatically-inflating mattress Jun. 25, 2013
8464370 Convertible furniture item Jun. 18, 2013
8365322 Multi-position remote latching mechanism Feb. 5, 2013
8365245 Previous password based authentication Jan. 29, 2013
6848127 Folding sofa bed Feb. 1, 2005
6668394 Convertible couch bed Dec. 30, 2003
5970538 Pantographic support control mechanism Oct. 26, 1999
5681164 Orthodontic appliance Oct. 28, 1997
5195193 Sofa with traversable seat support frame for conversion to a single bed Mar. 23, 1993
5101524 Sofa-platform bed Apr. 7, 1992
5023966 Piece of furniture Jun. 18, 1991
4825483 Sofa which can be converted to a bed May. 2, 1989
4672696 Convertible sitting/reclining furniture article Jun. 16, 1987
4601074 Furniture, particularly upholstered furniture, for transferring from a sitting position to a lying position Jul. 22, 1986
4539722 Sofa-bed-dining table combination Sep. 10, 1985
4480344 Divan-bed Nov. 6, 1984
4406027 Articulated framework for bed, relaxation seat or armchair Sep. 27, 1983
4402096 Folding bed chair with detachable cushions Sep. 6, 1983
4292697 Furniture for sitting and reclining Oct. 6, 1981
4212090 Ottoman convertible Jul. 15, 1980
4123811 Convertible sofa bed and cover Nov. 7, 1978
4031577 Convertible sofa bed Jun. 28, 1977











 
 
  Recently Added Patents
Polarization-coupled ferroelectric unipolar junction memory and energy storage device
LED light
Compositions and methods using microspheres and non-ionic contrast agents
Apparatus and method for evaluating an activity distribution, and irradiation system
Efficient location discovery
Nonvolatile semiconductor memory device
Lubricating oil compositions
  Randomly Featured Patents
Method of making a zinc anode for a reduced environmental hazard LeClanche cell having improved performance
Method for user-specified error correction in an instant messaging system
Charge/discharge protection circuit and power-supply unit
Composite dielectric forming methods and composite dielectrics
Metal carboxylate salt nucleating or clarifying agent compounds and related polymer compositions and methods
Lift valve for a rotary screw compressor
Power tong with reduced die markings
Energy-efficient electro-thermal ice-protection system
Wound shield with enclosed vacuum space
Safety device for a dung scraping device