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:
Jun. 22, 1976
Filed:
Nov. 01, 1974
Applicant:
Inventor:
Thomas J Wright, Itasca, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
35 / ;
Abstract
A self-teaching device which visually indicates the desired response to data presented. In the event an erroneous response is entered into the system, all prior responses are erased, requiring a complete repetition of the previous responses, thereby, reinforcing the correct response. A scrambler insures against patterned responses to the data presented.