Patent Yard Sign in
Expired Canadian patentCanada

Data storage means and reading system therefor

CA 1161557 A · Owner: Lear Siegler, Inc. · Inventors: Doane, Martin R.; Vander Meer, Clayton H.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A data storage element includes selectively programmable rows of data locations with at least one row including a predetermined detectable pattern of indicia. When scanned by a detector the data storage element provides signals which are stored and analyzed to verify that a data storage element has been read and data reading accuracy checks performed to assure the correct reading of data information programmed on the data storage element. -1-

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted January 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 23, 1980
GrantedJanuary 31, 1984
Term endedJanuary 31, 2001
Patent numberCA 1161557 A
Classification (IPC)G06K19/06 +2 more

Timeline

Timeline From CIPO dates

1981198419871990199319961999Application filedSep 23, 1980Patent grantedJan 31, 1984Term endedJan 31, 2001

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.