System and method for remotely accessing caller id information
CA 2452216 A1 · Owner: Tischler, Ralph · Inventors: Tischler, Ralph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A remote access device is provided with access to caller ID information stored in a, base unit. A communication path between the remote access device and the base unit is, established. Caller ID information is transmitted from the base unit to the remote access, device according to a communication protocol. The communication path can include a, telephone network such as the public-switched telephone network.
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 December 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2025.
- 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.