Method for creating and preserving an identifier
CA 2363655 A1 · Owner: Vatanen, Harri · Inventors: Hiltunen, Matti; Vatanen, Harri; Liukkonen, Jukka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for creating a global unambiguous identifier for predetermined data structures and for storing identifiers created. In the method an unambiguous , identifier is created from a key and/or keys associated with an encryption and/or signing procedure and/or from key holder information and/or other information. From the identifier, an unambiguous hash code is generated using e.g. a hash function. The hash codes thus generated are stored in a centralized place so that each hash code is unambiguously associated with a given juridical person and a given key pair. The hash code can be used e.g. as a part of encrypted messages sent by a mobile station in a mobile communication system …
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 February 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 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.