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:
Nov. 22, 1977
Filed:
Feb. 19, 1976
Applicant:
Inventor:
Dennis William Byatt, Chelmsford, EN;
Assignee:
The Marconi Company Limited, , EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365126 ; 346151 ; 358129 ;
Abstract
A thermoplastic film is used to record data in the form of variations in molecular orientation of the polar molecules. The film is softened by heating and the data recorded, after which the film is cooled to retain the recorded molecular orientation.