System and method for transmission and delivery of travel instructions to informational appliances
CA 2296946 C · Owner: Ladd, David J. · Inventors: Ladd, David J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method to provide requested travel directions to a user's pager or, voice mail system includes an Internet based server which accepts the geographic, endpoints defining the desired directions and the user's pager or voice mail information, The server uses the endpoints as a query to a mapping database to determine the, directions. The server then formats and sends the directions to the paging system and, pager or voice mailbox identified by the user.
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 January 26, 2000 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2022.
- 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.