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Expired Canadian patentCanada

Vector data retrieval apparatus

CA 2019151 C · Owner: Nec Corporation · Inventors: Nakamura, Toshihiko

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A vector data retrieval apparatus includes a unit for instructing whether to output a smallest or largest element number of element numbers to be output when a plurality of maximum or minimum values are present in vector data.

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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

  • Filed June 18, 1990 and granted August 11, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2012.
  • 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 18, 1990
GrantedAugust 11, 1998
Term endedJune 18, 2010
Patent numberCA 2019151 C
Classification (IPC)G06F7/22 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 18, 1990Patent grantedAug 11, 1998Term endedJune 18, 2010

Sources & verification

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