Caching dynamic webpages
CA 2240600 C · Owner: Kuperman, Leon · Inventors: Mohelsky, Alexander; Kuperman, Leon; Mau, Louis S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Web pages for commercial applications, such as electronic retail are built , "on-the-fly" in, Hypertext Markup Language (HTML) from product data stored in the merchant's database. To, reduce costs in time and computing resources and to improve customer access to data from the, merchant's web site, pages created in HTML are cached on the merchant server. On a customer, request for a page, the merchant server checks the cache first for the page and if it isn't found, there, generates a new page from the database. To maintain the validity of the content of the, cached pages, the database tables include triggers that cause identifying information for any, changes made on the stored data to …
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 June 12, 1998 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2020.
- 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.