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:
Apr. 27, 1982
Filed:
Aug. 15, 1979
Applicant:
Inventors:
Dieter Schaefer, Lindenberg, DE;
Herbert Motz, Willstaett, DE;
Dieter Mayer, Ludwigshafen, DE;
Paul Deigner, Willstaett, DE;
Joachim Hack, Ludwigshafen, DE;
Roland Falk, Achern, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 65 ; 428 64 ; 428216 ; 428341 ; 428422 ; 428695 ; 428900 ;
Abstract
A magnetic recording medium comprising a non-magnetic base and a magnetizable layer which is applied to at least one side thereof and comprises magnetic particles finely dispersed in a polymeric binder and additives, the surface of the magnetizable layer being provided with a coating of a perfluoropolyether oil mixture as a lubricant.
Schaefer, Dieter. (1982). Rigid magnetic recording disk having perfluoropolyether lubricant (U.S. Patent No. 4327139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4327139
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile