Universal telephone system and method
CA 2215645 C · Owner: Griesmer, Stephen J. · Inventors: Griesmer, Stephen J.; Ronen, Yzhak
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A universal phone located in a foreign country provides home country telephone appearance and functions for a caller visiting the foreign country. The universal phone includes a database of national telephone features that are characteristic of the caller's home country. The universal phone includes a smart card adapter that receives a smart card presented by the caller bearing, information of the caller's ID the caller's home country, and other information. When the caller inserts his smart cart into the universal phone the caller's, home country information is read from the card. The home country information is used to access the database to obtain the telephone appearance and functions …
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 September 15, 1997 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 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.