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Canadian application, no grantCanada

Method and system for searching compressed data

CA 2125337 A1 · Owner: Microsoft Corporation · Inventors: Eller, Marlin Jay

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

Abstract of the Disclosure, A method and system for searching a compressed document while a plurality of character strings stored in the compressed document are stored in a compressed code. A query request is received, the query request is converted into the compressed code, and the converted query request is compared with the compressed codes stored in the compressed document. The initiator of the query request is then informed about the results of the comparison.

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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 7, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 7, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2016.
  • 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 7, 1994
GrantedNo grant recorded
Term endedJune 7, 2014
Patent numberCA 2125337 A1
Classification (IPC)H03M7/30 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJune 7, 1994Term endedJune 7, 2014

Sources & verification

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