US 12,004,660 B2
Compliant backrest
Nickolaus William Charles Deevers, E Grand Rapids, MI (US); Kurt R. Heidmann, Grand Rapids, MI (US); Pascal Rolf Hien, Radebeul (DE); Jeffrey A. Hall, Grand Rapids, MI (US); John Colasanti, Jenison, MI (US); and Michael Yancharas, Comstock Park, MI (US)
Assigned to STEELCASE INC., Grand Rapids, MI (US)
Filed by Steelcase Inc., Grand Rapids, MI (US)
Filed on Jul. 28, 2023, as Appl. No. 18/227,612.
Application 18/227,612 is a continuation of application No. 18/096,770, filed on Jan. 13, 2023, granted, now 11,819,139.
Application 18/096,770 is a continuation of application No. 17/683,876, filed on Mar. 1, 2022, granted, now 11,583,092, issued on Feb. 21, 2023.
Application 17/683,876 is a continuation of application No. 17/035,150, filed on Sep. 28, 2020, granted, now 11,291,305, issued on Apr. 5, 2022.
Application 17/035,150 is a continuation of application No. 16/208,206, filed on Dec. 3, 2018, granted, now 10,813,463, issued on Oct. 27, 2020.
Application 17/035,150 is a continuation of application No. 29/628,523, filed on Dec. 5, 2017, granted, now D869872, issued on Dec. 17, 2019.
Application 16/208,206 is a continuation of application No. 29/628,527, filed on Dec. 5, 2017, granted, now D869890, issued on Dec. 17, 2019.
Application 16/208,206 is a continuation of application No. 29/628,528, filed on Dec. 5, 2017, granted, now D870479, issued on Dec. 17, 2019.
Application 16/208,206 is a continuation of application No. 29/628,526, filed on Dec. 5, 2017, granted, now D869889, issued on Dec. 17, 2019.
Claims priority of provisional application 62/594,885, filed on Dec. 5, 2017.
Prior Publication US 2024/0023717 A1, Jan. 25, 2024
Int. Cl. A47C 7/44 (2006.01); A47C 7/40 (2006.01); A47C 7/46 (2006.01)
CPC A47C 7/44 (2013.01) [A47C 7/40 (2013.01); A47C 7/46 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A backrest comprising:
a frame comprising a pair of laterally-spaced side members, an upper member extending laterally between and connecting the side members, and a cross member longitudinally spaced below the upper member, wherein the cross member extends laterally between and connects the side members, wherein the side members, upper member and cross member define a first central opening, and wherein the side members each have a lower portion extending below the cross member, wherein the lower portions are connected to a forwardly extending support member, wherein the lower portions and cross member partially define a second central opening positioned below the first central opening; and
a flexible shell comprising opposite sides coupled to the upright members and upper and lower portions coupled to the upper member and the cross member respectively, wherein the shell covers the first central opening, and wherein at least a portion of the second central opening is not covered by the shell.