The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1991
Filed:
Sep. 19, 1988
Applicant:
Inventor:
Charles Heidmann, Strasbourg, FR;
Assignee:
Steelcase Strafor, Strasbourg, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
297304 ; 297300 ; 297457 ; 297337 ;
Abstract
An ergonomic chair having a movable, bendable chair back, which offers improved comfort and adjustability. The structure includes a series of rearward opening grooves in the chair back. This structure allows limited back flexibility. The chair also includes a mehcanism for adjusting the force needed to move the back, and another mechanism which limits the back's movement. Similar structure includes a seat which can slide forward and backward.