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:
May. 30, 1978
Filed:
Jan. 02, 1976
Gerald S Newton, Graham, TX (US);
Graham Magnetics Incorporated, Graham, TX (US);
Abstract
An improved magnetic tape having the property of retaining magnetic data even when spooled and subjected to high temperature environments. This thermal resistance is suitably achieved by providing a backing coating which contacts the magnetic-particle-bearing facing coating of the tape and is chemically incompatible therewith. Pairs of chemically-incompatible coatings include polyester polyurethane-polyether-polyurethane; polyfluorinated hydrocarbons-polyurethane. A conductive furnace carbon black is advantageously used in the backing coating, and the substrate is, suitably, temperature-resistant polyimide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile