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. 30, 1982
Filed:
Jun. 20, 1980
Applicant:
Inventors:
George B Sidline, Belmont, CA (US);
John F Henshaw, Mill Valley, CA (US);
Eugene S Elkus, Atherton, CA (US);
Assignee:
Service Distributors, Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235476 ;
Abstract
A card having a longitudinal strip of encoded magnetic tape is inserted in a slot in a machine which feeds the card into the machine, reads the information on the strip, reverses the direction of the card and impacts the card to form an indentation to indicate a use of the card. The card is initially encoded for plural uses. Each time the card is used, the number of available uses is decreased on the information on the strip and corresponding indentations are impacted on the card.