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. 28, 1978
Filed:
Jun. 20, 1977
Applicant:
Inventor:
Dieter Fischer, Frankfurt am Main, DE;
Assignee:
Battelle-Institute e.V., Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365146 ; 307 / ;
Abstract
A storage element for an erasable, digital, permanent storage device is disclosed in which a bipolar, charged electret serves as the storage medium. The electret has a thin conductive layer on one side and a ring electrode on the other. The state of charge of the electret is changeable to erase, or change the storage element.