Electronic stamp providing system for online advertisement and method of operating thereof
CA 2402347 A1 · Owner: Park, Choon-Woo · Inventors: Park, Choon-Woo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The electronic stamp providing system provides a customized online advertisement to an electronic mail receiver by using a data transmission network such as an internet. The electronic stamp providing system gives an electronic stamp based on a new type gotten by combining a stamp image and identification information. A transmitter appends the electronic stamp to an electronic mail by using the electronic stamp program and transmits it, and a , receiver connects to the electronic stamp providing system through the electronic stamp contained into the electronic mail and the electronic stamp , providing system delivers the customized online advertisement on the basis of personal …
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 March 8, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 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.