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:
Oct. 19, 2004
Filed:
May. 02, 2001
Terho Kaikuranta, Piispanristi, FI;
Bror Svarfvar, Kaarina, FI;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
A keypad is disclosed for a portable electronic device. The keypad comprises an outer surface and a number of pressable keys ( ). Associated with each key there is a pair of conductive contact points ( ) separated from each other. A plurality of elastic domes ( ) is located next to the conductive contact points. For each pair of conductive contact points ( ) there is an adjacent elastic dome ( ) having a concave side and a convex side, of which the concave side is at least partially conductive and directed towards the pair of conductive contact points. The concave sides of the plurality of elastic domes ( ) are directed towards the outer surface of the keypad.