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Expired Canadian patentCanada

Method and apparatus for the electronic storage and retrieval of expressions and linguistic information

CA 1268558 C · Owner: Kucera, Henry · Inventors: Kucera, Henry

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention relates to a system for storing retrieving, and processing linguistic information. In one aspect, the invention provides a system for storing linguistic expressions, which system includes a main dictionary storage section and three coding sections, one for each of regular paradigm information, partially irregular paradigm information and fully irregular paradigm information. In another aspect the invention provides a system for evaluating linguistic expressions, e.g. words, and determining their grammatical and inflectional information. The invention has applicability in the field of word processing.

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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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 27, 1986
GrantedMay 1, 1990
Term endedMay 1, 2007
Patent numberCA 1268558 C
Classification (IPC)G06F17/30 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedJune 27, 1986Patent grantedMay 1, 1990Term endedMay 1, 2007

Sources & verification

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