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:
Jun. 03, 2008
Filed:
Feb. 12, 2003
Stefan Burström, Lund, SE;
Mattias Bryborn, Lund, SE;
Peter Gredinger, Skurup, SE;
Ola Strömberg, Staffanstorp, SE;
Magnus Horrdin, Löddeköpinge, SE;
Stefan Burström, Lund, SE;
Mattias Bryborn, Lund, SE;
Peter Gredinger, Skurup, SE;
Ola Strömberg, Staffanstorp, SE;
Magnus Horrdin, Löddeköpinge, SE;
Anoto AB, Lund, SE;
Abstract
An electronic pen has a force sensor whose electrical resistance varies in accordance with the amount of force applied to the pen stem of the pen. The force sensor is a modular unit with an electrode and a closure, which are mutually arranged in an essentially electrically insulated initial position. The closure, which conveniently is cantilevered on the electrode, is adapted to receive axial forces from the pen stem and thereby to be urged to an activated position in electrical contact with the electrode. The closure is also arranged, on relaxation of the axial forces, to automatically spring from the activated position back to the initial position.