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Canadian application, no grantCanada

Flexible method of security data backup

CA 2317211 A1 · Owner: Dew Engineering And Development Limited · Inventors: Hamid, Laurence; Hillhouse, Robert D.

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 method of supporting a substantially secure backup copy of a key-server database, said database comprising security information specific to a plurality of users, absent the need for a duplicate key-server is disclosed. According to the method, each, individual's security data is stored within the key-server database and is also stored on a, portable data storage device such as a smart card or a PCMCIA token. If the key-server, crashes and the database stored thereon is lost a duplicate key-server , database is, reconstructed using the aggregate of the partial database files stored on each individual's, portable data storage device. Similarly when a portable data storage device , is …

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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 September 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 1, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 1, 2000
GrantedNo grant recorded
Term endedSeptember 1, 2020
Patent numberCA 2317211 A1
Classification (IPC)G06F12/16 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedSep 1, 2000Term endedSep 1, 2020

Sources & verification

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