Billing system for radio communications
CA 2109490 C · Owner: Ricos Co. Ltd. · Inventors: Tsumura, Mihoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A billing system in radio communications particularly satellite communications, for billing and collecting information service fees against pay information on a receiver unit. The billing system comprises a main unit disposed on a transmitter side having a host computer with a database for storing various types of data and a transmitter and receiver units for receiving said various types of data transmitted through radio communications. A data frame of each of various types of data transmitted by the main unit is tagged with an identification code corresponding to said each type. The receiver unit comprises signal processing circuits each of which processes respective type of data and an …
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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 October 28, 1993 and granted September 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2015.
- 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.