Patent Yard Sign in
Expired Canadian patentCanada

Dynamic semi-structured repository for mining software and software-related information

CA 2284949 C · Owner: Ibm Canada Limited - Ibm Canada Limitee · Inventors: Dayani-Fard, Homayoun; Jurisica, Igor

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A repository-based reverse engineering system for software systems and particularly, legacy software systems. The reverse engineering system includes a graph-based data repository, which holds data extracted from the source code in the software system. The graph-based data, repository holds the data in a semi-structured form. The reverse engineering system includes, mechanisms for constructing views on top of the extracted data and mechanisms for creating model, abstractions on top of the views. The graph-based data repository provides flexible search and, browse capabilities including pattern matching structural searching, fuzzy , and incomplete searching and similarity-based …

Read the whole patent

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 October 4, 1999 and granted October 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 4, 1999
GrantedOctober 14, 2003
Term endedOctober 4, 2019
Patent numberCA 2284949 C
Classification (IPC)G06F9/00 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedOct 4, 1999Patent grantedOct 14, 2003Term endedOct 4, 2019

Sources & verification

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