Card holder

Details Card holder Card holder

1986-02-12

1987-03-24

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

200 6119, G08B 1314

Patent

active

046528652

ABSTRACT:
A credit card holder composed of a series of transparent pockets is provided with an alarm system warning the owner that a card was not returned into its pocket. Each pocket is provided with two electric contact strips attached to the inside of the pocket walls which are separated by the credit card inside the pocket and are in contact whenever the card is withdrawn. The card holder contains a battery, a buzzer and a timer suitably connected to the contact strips. This timer serves to delay energizing of the buzzer for a time period in which the transaction can be reasonably accomplished, and sounds the alarm only then.

REFERENCES:
patent: 3959789 (1976-05-01), McGahee

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