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. 26, 1991
Filed:
Dec. 10, 1990
Peter Felgentreu, Hamburg, DE;
Koh-I-Noor Inc., Hamburg, DE;
Abstract
A stylo pen tip has a front part (2) supporting the writing tube (6), on which a writing fluid cartridge (10) has been placed from behind with its front section. The front end area of the writing fluid cartridge (10) forms a narrowed, elastically stretchable opening cross section (12) which, in the operating position, grasps a protrusion area (8) formed on the front part (2) from behind. An auxiliary tool (19, 20) can be placed from the front on the front part (2) and can be brought into stretching engagement with the stretchable opening cross secion (12) of the writing fluid cartridge (10) in order to allow a separation of the front part (2) and the writing fluid cartridge (10) from each other.