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:
Feb. 23, 1982
Filed:
Aug. 22, 1979
Egon Brauning, Weil am Rhein, DE;
Protoned BV, Amsterdam, NL;
Abstract
In order to achieve the necessary flexible curve according to the natural curve of the human spine in the field of back supports, the back support, attached relatively rigidly in its lower section to the seat, is constructed increasingly more flexibly towards the top. So that the desired course of the spine-like curve can also be achieved at the upper end of the shoulder pad connected to the back rest when the chair is 'loaded', a spring member which becomes progressively 'harder' is mounted in the connecting element between the end of the back rest and the shoulder pad.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile