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Class Information
Number: 297/353
Name: Chairs and seats > Movable back
Description: Device wherein means are provided to move or permit movement of the back relative to the other components of the seating device by means of an articulation of the back to the other components.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4756575 |
Frame assembly for a chair |
Jul. 12, 1988 |
| 4749230 |
Height adjusting device for chair backrest |
Jun. 7, 1988 |
| 4732423 |
Invalid's chair construction |
Mar. 22, 1988 |
| 4711492 |
Chair back arrangement |
Dec. 8, 1987 |
| 4685733 |
Chair |
Aug. 11, 1987 |
| 4676550 |
Seat for vehicle, particularly motor vehicle |
Jun. 30, 1987 |
| 4669781 |
Linear type seat recliner |
Jun. 2, 1987 |
| 4662682 |
Seat back height adjustment mechanism |
May. 5, 1987 |
| 4662681 |
Adjustable chair |
May. 5, 1987 |
| 4660885 |
Adjusting mechanism for the step-wise locking height adjustment of backrest of work chair |
Apr. 28, 1987 |
| 4640547 |
Adjustable swivel chair |
Feb. 3, 1987 |
| 4639039 |
Height adjustment mechanism for chair backrest |
Jan. 27, 1987 |
| 4632410 |
Combination tool caddy and stool |
Dec. 30, 1986 |
| 4632458 |
Chair back height adjustment mechanism |
Dec. 30, 1986 |
| 4616877 |
Chair with back height adjustment |
Oct. 14, 1986 |
| 4611852 |
Bleacher back-rest |
Sep. 16, 1986 |
| 4609221 |
Pivoting rear seat arrangement |
Sep. 2, 1986 |
| 4596421 |
Office chair |
Jun. 24, 1986 |
| 4576411 |
Vehicle seat |
Mar. 18, 1986 |
| 4573737 |
Chair with a height-adjustable back rest |
Mar. 4, 1986 |
| 4570998 |
Motorcycle backrest seat |
Feb. 18, 1986 |
| 4547017 |
Articulated chair |
Oct. 15, 1985 |
| 4536031 |
Back support control mechanism for a chair or the like |
Aug. 20, 1985 |
| 4506754 |
Motorcycle frame with adjustable and compact rider support |
Mar. 26, 1985 |
| 4475770 |
Adjustable backrest for cycle type seat |
Oct. 9, 1984 |
| 4466665 |
Chair having adjsutable, cantilevered lumbar-supporting arm |
Aug. 21, 1984 |
| 4456298 |
Apparatus for stepwise adjustment of separation between two chair portions |
Jun. 26, 1984 |
| 4451084 |
Backrest height adjustment for office chair |
May. 29, 1984 |
| 4432582 |
Chair with means for adjusting the inclination of the backrest |
Feb. 21, 1984 |
| 4429918 |
Operatory stool |
Feb. 7, 1984 |
| 4428611 |
Rotating and folding rear seat back mechanism |
Jan. 31, 1984 |
| 4408802 |
Adjustable vehicle seat |
Oct. 11, 1983 |
| 4401343 |
Upholstered seat for motor vehicle |
Aug. 30, 1983 |
| 4391453 |
Child stroller |
Jul. 5, 1983 |
| 4385783 |
Upholstered furniture element |
May. 31, 1983 |
| 4384742 |
Height adjusting mechanism for chair back |
May. 24, 1983 |
| 4377308 |
Asymmetrical anatomic arm-chair, particularly for odontological use |
Mar. 22, 1983 |
| 4364604 |
Aircraft seat |
Dec. 21, 1982 |
| 4314728 |
Chair control |
Feb. 9, 1982 |
| 4266305 |
Wheelchair for transportation vehicles |
May. 12, 1981 |
| 4254924 |
Aircraft seat |
Mar. 10, 1981 |
| 4221430 |
Push button adjuster for chair backrest |
Sep. 9, 1980 |
| 4181357 |
Seat backrest tilt and height adjustment means |
Jan. 1, 1980 |
| 4170382 |
Posture chair |
Oct. 9, 1979 |
| 4154477 |
Vehicle seat having backrest height adjustment means |
May. 15, 1979 |
| 4139235 |
Back support truck seat back |
Feb. 13, 1979 |
| 4103961 |
Rumble seat |
Aug. 1, 1978 |
| 4102549 |
Apparatus for adjusting the back support of a chair |
Jul. 25, 1978 |
| 4099774 |
Stenographer's chair |
Jul. 11, 1978 |
| 4097087 |
Chair with adjustable back support cushion |
Jun. 27, 1978 |
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