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:
Nov. 04, 2025
Filed:
Jul. 15, 2019
Sanofi, Paris, FR;
James Alexander Senior, Warwick, GB;
Harry Robert Lester, Warwick, GB;
David Aubrey Plumptre, Warwick, GB;
Robert Veasey, Warwick, GB;
Sanofi, Paris, FR;
Abstract
A drug delivery device comprising a housing with an opening, a piston rod having a proximal end and a distal end, and a bearing. The piston rod is adapted to engage the opening for guiding the piston rod during a movement of the piston rod relative to the housing. The piston rod also includes a first attachment element located at the distal end. The bearing has a second attachment element for rotatable attachment of the bearing at the distal end of the piston rod. The first attachment element and/or the second attachment element is elastically deformable in a radial direction for snap engagement of the piston rod and the bearing. The opening is adapted to receive the first attachment element and the second attachment element if attached to each other but preventing disengagement of the first attachment element and the second attachment element if received in the opening.