Method for deleting a marked portion of a structured document
CA 2007789 C · Owner: International Business Machines Corporation · Inventors: Perry, Robert, Jr.; Lim, Chan S.; Kozol, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A method is disclosed for deleting a marked portion of a structured document so as to prevent damaging the structure of the document. The method examines the contents of a marked portion of a structured document and determines which begin and end tags are unmatched. A begin tag whose end tag has not been marked or vice versa, is flagged so that it is not deleted when the contents of the mark are deleted. This allows the Structured Delete function to delete a marked portion of the structured document without damaging the document's structure.
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 January 15, 1990 and granted November 30, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2012.
- 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.