Charging system and method
CA 2212027 C · Owner: Canon Kabushiki Kaisha · Inventors: Iwamura, Keiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to allow a user to alter provided information in accordance with his or her purpose there, is provided a charging system and method in which, multimedia information, and charge for information and alteration information inherent to the multimedia information are received, whether or not the received multimedia information can be used is checked on the basis of the received charge information and money information in a medium that records the money information, and whether or not the received multimedia information can be altered is checked on the basis of the received alteration information and the money information.
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 1, 1997 and granted October 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2019.
- 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.