Method and apparatus for distributing advertisements through a network
CA 2379632 A1 · Owner: Nagatsuma, Daisuke · Inventors: Natsuno, Takeshi; Nagatsuma, Daisuke; Sato, Takayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communication terminal transmits a demand for access to a WWW server connected with a network to a relay server in the network. The relay server transmits the access demand to the WWW server and receives display data from the WWW server, and transmits an advertising ID for specifying an advertisement satisfying pre-defined conditions together with the display , data to the communication terminal. This communication terminal displays the display data on the screen and transmits the advertisement data demand containing the advertising ID, as received from the relay server to an , advertisement distribution server through the relay server. The advertisement distribution server …
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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 May 30, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 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.