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. 03, 1989
Filed:
May. 31, 1988
Applicant:
Inventors:
Ernst Kunkel, Hanover, DE;
Wolfhard Rutz, Hanover, DE;
Assignee:
Pelikan Aktiengesellschaft, Hanover, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428484 ; 106 20 ; 106 27 ; 106 28 ; 106 31 ; 260D / ; 4003411 ; 428914 ; 4284881 ; 524556 ;
Abstract
The present invention relates to a typewriter ribbon made up of a flexible thin support and a transferable mass placed on the flexible thin support. The transferable mass comprises a surface-active dispersing agent and a surface-active resin dissolved in a medium-boiling solvent. This ribbon is useful for correctable typing on delicate or treated paper, e.g., photocopied paper.