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. 12, 2008
Filed:
Jan. 05, 2005
Applicants:
Helmut Kastner, Neukirchen, DE;
Gerhard Wunderling, Pegnitz, DE;
Inventors:
Helmut Kastner, Neukirchen, DE;
Gerhard Wunderling, Pegnitz, DE;
Assignee:
Suspa Holding GmbH, Altdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16M 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An adjustable-height chair column comprises an upright tube and a gas spring, the piston rod of which is fixed in the upright tube, and the housing of which is displaceably guided in the upright tube. A safeguard against rotation is provided which, in the extended position, locks the housing and the upright tube against rotation.