Patent ID: 9283802
Filing Date: 2016-03-15
CPC Classification: B43K

Claim Text:
1. A writing instrument ( 1 ), which is formed as a pushbutton writing instrument comprising a writing instrument housing ( 3 ), with a writing tip ( 8 ) protruding beyond one end of said housing, said writing tip being movable by a pushing mechanism between a writing position, projecting beyond one end of the writing instrument housing ( 3 ), and a standby position, located in a housing interior of the writing instrument housing ( 3 ), the pushing mechanism being actuatable by a pushbutton ( 5 ) that is a functional element, which is provided at a second end of the writing instrument housing ( 3 ) that is remote from the writing tip ( 8 ), the pushbutton ( 5 ) includes a first pushbutton subregion ( 9 ) that is displaceably guided in the writing instrument housing ( 3 ) and having a first finger-engagable region that protrudes beyond the second end of the writing instrument housing ( 3 ) and a receiving opening ( 10 ) that extends to a region within the writing instrument housing, the first pushbutton subregion ( 9 ) is in driving connection with the pushing mechanism, a second pushbutton subregion ( 6 ) is detachably fastened to the first pushbutton subregion ( 9 ), the second pushbutton subregion ( 6 ) including a second finger-engagable region that protrudes beyond the second end of the writing instrument housing ( 3 ) and is complementary to and engagable with the first finger-engagable region to form an external portion of the pushbutton, and a machine-readable data memory connected to the second finger-engagable region and removably insertable into the receiving opening ( 10 ) such that the machine-readable data memory extends within the writing instrument housing ( 3 ), and the first finger-engagable region allowing actuation of the pushing mechanism upon removal of the second pushbutton subregion ( 6 ).