Dynamic caller-id substitution
CA 2358221 A1 · Owner: Ag Communication Systems Corporation · Inventors: Strand, David; Gallick, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The making of substitute caller-ID telephone calls by service bureaus or agents on behalf of users is facilitated by permitting users and service bureaus hav-, ing the appropriate classes of service to provision a, centralized data base, such as an SCP with the requi-, site call management information independently of one another but which confirms the authority of the service bureau to act on behalf of a user before permitting such calls to be made.
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 October 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2023.
- 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.