Patent · US Expired

Dispensing system and security card for use therewith

USRE28701E · kind E · reissue

6Cited by
8References
51Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 30, 1974
Grant dateJan 27, 1976
Priority date
Expiry dateSep 30, 1994

Classification

  • Technology area (CPC —)General

Abstract

Apparatus for dispensing items desired by the user in response to the introduction of a valid security card and additional predetermined information. The apparatus includes means for reading data from the security card, keyboard means for introducing additional information and electronic logic for determining the validity of the card and the validity of the predetermined information. A security card is provided including a first area to record the number of uses of said card and a second area to record the date of the last use. The apparatus includes logic to prevent dispensing and to retain the card if the card has been used more than a predetermined number of times or more than once within a predetermined time interval.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.