Software for restricting other software to be used by the rightful user only and method therefor
CA 2389526 A1 · Owner: Tse, Ho Keung · Inventors: Tse, Ho Keung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A central program comprising a EI sub-program for providing identity information of the rightful user thereof for accessing a network central computer to obtain service(s) or software product(s) or alike in which a , secure operation on an account of the rightful user for payment therefor involved; and a AS sub-program for using the existence of the EI sub-program in a computer as a precondition for authorising use of those software products obtained on that computer. The central program is for managing the use of the individual sub-programs therein so that the AS sub-program can be protected from being copied individually.
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 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2021.
- 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.