Prize contest system, prize-contest information presenting method, recording medium and program signal
CA 2347402 A1 · Owner: Onoue, Masashi · Inventors: Onoue, Masashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A prize contest system has user terminals and a prize-offering site. The prizeoffering, site has databases which store prize information on prizes an entry-accepted , date and, advertisement information on a sponsor of the prizes in association with one another. In, response to a request made through any user terminal the prize-offering site , sends prizecontest information to that user terminal using the prize information the , advertisement, information and information on the entry-accepted date. With regard to ordinary entries, the prize-offering site accepts only those entries which are directed to prizes of that date. With regard to those entries which have keywords shown on an …
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 May 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 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.