U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Payment card with display

Patent 5359183 Issued on October 25, 1994. Estimated Expiration Date: Icon_subject April 6, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3812490

3863249

Electro-visual indicators
Patent #: 3935571
Issued on: 01/27/1976
Inventor: Sargent

Wall-hanging type magnetic displaying device
Patent #: 4288936
Issued on: 09/15/1981
Inventor: Okutsu

Construction of an epid bar graph
Patent #: 4450440
Issued on: 05/22/1984
Inventor: White

Magnetic display panel
Patent #: 4536428
Issued on: 08/20/1985
Inventor: Murata ,   et al.

Magnetophoresis type display and graphic input/output device using the same
Patent #: 4675476
Issued on: 06/23/1987
Inventor: Kobayashi

Display apparatus
Patent #: 4831372
Issued on: 05/16/1989
Inventor: Riddoch

Portable information record medium having liquid crystal and photoconductive layers
Patent #: 5055662
Issued on: 10/08/1991
Inventor: Hasegawa

Credit card pager apparatus Patent #: 5192947
Issued on: 03/09/1993
Inventor: Neustein

Inventor

Application

No. 864217 filed on 04/06/1992

US Classes:

235/493, Magnetic40/449, Magnetic235/380Credit or identification card systems

Examiners

Primary: Cross, E. Rollins
Assistant: Solis, Erick

Attorney, Agent or Firm

Foreign Patent References

  • 810324 CA 04/20/1969
  • 0460891 JP 02/20/1992

International Class

G06K 019/06

Abstract

A new type of payment card includes a magnetically controlled display for visually reading magnetically recorded information such as current balance or available service value of the payment card. The required electronic and mechanical interface can be added to existing payment card handling equipment.

Other References

  • IBM Technical Disclosure Bulletin, "Credit Card with an Erasable Field for Human Readability" R. M. Ross vol. 8, No. 11. Apr. 196
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