Presentation of search results based on document structure
CA 2581713 C · Owner: Google Llc · Inventors: O'Sullivan, Joseph Kieran; Lifantsev, Maxim; Ratnakar, Viresh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system identifies a document relating to a search term where the document , includes a set of structural elements. The system determines a distribution of occurrences of the search term in the document identifies one of the , structural elements based on the distribution of occurrences of the search term in the document, and presents information associated with the identified structural element.
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 August 19, 2005 and granted December 29, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.