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:
Feb. 01, 1977
Filed:
Sep. 17, 1974
Applicant:
Inventors:
Assignee:
Schulte-Schlagbaum Aktiengesellschaft, Tonisheide, DT;
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ; G07F / ;
U.S. Cl.
CPC ...
235 / ; 235 / ; 194 / ;
Abstract
A control apparatus for measuring usage time including an information carrier in the form of a token having magnetizable regions; the latter store information consisting of individual magnetic signals upon insertion of a coin corresponding to the time thereof. The token is interrogated in a read device upon its insertion therein.
Baumann, Alexander. (1977). Control apparatus for determining usage time (U.S. Patent No. 4006342). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4006342
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