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. 12, 2002
Filed:
Jul. 11, 2001
Applicant:
Inventors:
Wilhelm Eckl, Karlsruhe, DE;
Helmut Nagele, Pfinztal, DE;
Jürgen Pfitzer, Pfinztal, DE;
Norbert Eisenreich, Pfinztal, DE;
Peter Eyerer, Karlsruhe, DE;
Peter Elsner, Pfinztal, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B43K 1/914 ; B43K 1/916 ;
U.S. Cl.
CPC ...
B43K 1/914 ; B43K 1/916 ;
Abstract
A method for producing a substantially rod-shaped composite body ( ) consists of a core ( ) enveloped by at least one polymer, according to which the plasticized polymer ( ) is extruded onto the core ( ). At least one natural polymer is used and a sliding agent on the basis of native oils and/or waxes is added before or during extrusion. The method is used for the production of writing, drawing, cosmetic pencils.