Electronic mail advertisement system
CA 2359668 A1 · Owner: Ito, Takeshi · Inventors: Kawai, Eiji; Ito, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high noticeable, highly efficient advertisement medium is provided using portable terminals. Electronic mail data (106) is sent from a sender's terminal (16A) via a PHS network (12) to a receiver's terminal (16B). The sender's terminal has an attribute data memory (42) for storing attributes of a sender as attribute data (102), and adds the attribute data (102) to the electronic mail body data (104) to generate electronic mail data (106) when electronic mail is to be sent to the receiver's terminal. A relay device (22) refers to the attribute data added to the electronic mail data sent from the sender's terminal, extracts advertisement data and/or guide information data (108) …
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 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2022.
- 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.