System and method for implementing robot proof web site
CA 2418044 A1 · Owner: Levy-Abegnoli, Eric · Inventors: Thubert, Pascal; Lamberton, Marc; Levy-Abegnoli, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention allows to prevent robots from browsing a Web site beyond a welcome page. When an initial request from an undefined originator is received Web site responds to it with a welcome page including a challenge. Then on , receiving a further request from the undefined originator Web site can check whether the challenge is fulfilled or not. If fulfilled the undefined originator is assumed to be a human being and authorized to go on. If challenge is not however fulfilled the undefined originator is assumed to be a robot in which case site access is further denied. The invention prevent Web site contents from being investigated by robots while not requiring users to have to log …
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 9, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2023.
- 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.