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. 24, 1976
Filed:
May. 23, 1975
Applicant:
Inventors:
Mary R Thomas, Midland, MI (US);
Robert H Lalk, Midland, MI (US);
Syamalarao Evani, Midland, MI (US);
Donald L Schmidt, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428500 ; 427 48 ; 427128 ; 427130 ; 427131 ; 428539 ; 428900 ;
Abstract
Magnetic tapes are made by applying to a backing film an aqueous dispersion of magnetic particles having dissolved therein cyclic sulfonium zwitterion monomers, magnetically orienting the magnetic particles, drying the coating and curing same. Upon removal of the water and/or moderate heating, the monomers polymerize to form a durable matrix having the magnetic particles dispersed therein.
Thomas, Mary. (1976). Magnetic tape and process of making a magnetic tape (U.S. Patent No. 3976822). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3976822
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile