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Expired Canadian patentCanada

A data storage device

CA 2183161 C · Owner: British Telecommunications Public Limited Company · Inventors: Gallagher, Anne Marie; Strahan, Robert; Mcpartlan, Maura Elizabath

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

A data storage device includes a CMIP application component (42) which receives data on network objects using the CMIP protocol from the network manager of a main network. For each attribute of each object a CMIP/SNMP, mapper component (44) converts the CMIP object class name attribute name and distinguished name of the object into the corresponding SNMP object identifier and the CMIP attribute value into the corresponding SNMP attribute value and this data is stored in MIB (46). An SNMP application component (48) receives requests for information from a network manager of a local network. In order to service a valid request the, SNMP application component (48) retrieves the required 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 February 28, 1995 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 1995
GrantedFebruary 20, 2001
Term endedFebruary 28, 2015
Patent numberCA 2183161 C
Classification (IPC)H04L12/66 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedFeb 28, 1995Patent grantedFeb 20, 2001Term endedFeb 28, 2015

Sources & verification

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