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:
May. 20, 2025
Filed:
Dec. 05, 2019
Wittur Holding Gmbh, Bayern, DE;
Oguzhan Yildiz, Istanbul, AR;
Ozan Tosun, Istanbul, AR;
Turgut Baris Ergen, Istanbul, AR;
Mesut Selek, Istanbul, AR;
WITTUR Holding GMBH, Bayern, DE;
Abstract
Folding ladder (), in particular for accessing the cavity of a lift shaft comprising: a first side rail () and a second side rail () that are parallel; a plurality of rungs (); a stop () located on the first side rail (); a locking member () located on the second side rail (); a locking arm () having a first end portion () pivotally attached to the first side rail () and a second end portion () that is movable between an unlocking position in which it is magnetically coupled to the stop () so that the locking arm () abuts the first side rail (), and a locking position in which it is magnetically coupled to the locking member () so that the locking arm () is diagonally arranged with respect to both the side rails ().