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Expired Canadian patentCanada

High performance vlsi filter

CA 1306063 C · Owner: Bell Communications Research, Inc. · Inventors: Matoba, Takako; Herman, Gary Edward; Lee, Kuo-Chu

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 single chip high speed VLSI data filter is disclosed. The data filter performs relational and simple numeric operations on a high speed input data stream using a unique instruction set containing no branching instructions.

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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 August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 19, 1989
GrantedAugust 4, 1992
Term endedAugust 4, 2009
Patent numberCA 1306063 C
Classification (IPC)G06F7/22 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedApril 19, 1989Patent grantedAug 4, 1992Term endedAug 4, 2009

Sources & verification

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