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:
Aug. 15, 1978
Filed:
Mar. 02, 1977
Applicant:
Inventors:
Zlata Kovac, Somers, NY (US);
Carlos Juan Sambucetti, Groton-on-Hudson, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; C09D / ;
U.S. Cl.
CPC ...
252 6252 ;
Abstract
Water based magnetic colloidal fluids, useable as inks, when prepared by coating chemically precipitated magnetite (Fe.sub.3 O.sub.4) with an adsorption site providing coating agent including certain organic anions, such as sulfates, sulfonates or amino carboxilates, and then dispersing the coated product with non-ionic, anionic or cationic surfactants may exhibit selectably cationic, anionic or non-ionic charge responsiveness.
Quick Actions:
Kovac, Zlata. (1978). Water based selectable charge magnetic inks (U.S. Patent No. 4107063). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4107063
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile