Method and appparatus for the billing of value-added communication calls
CA 2032615 C · Owner: Friedes, Albert · Inventors: Friedes, Albert; Howe, Thomas P.; Rees, Rachelle E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A call billing method and apparatus specifies on a call-by-call basis, the, calling charges incurred by a caller during a call to a sponsor-provided value-added service. The method provides the sponsor real time access to rate tables to specify call billing parameters needed to rate calls made to a sponsor number. A billingnumber is determined and validated and used to identify the party to receive a billing record for the call. A separate billing record is created for each call to the sponsor's number which includes sponsor-specified charges determined using the call billing parameters. Another feature enables the caller or called party to provide call billing parameters for …
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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 December 18, 1990 and granted August 30, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2012.
- 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.