Method and system for internet sampling
CA 2380648 A1 · Owner: Kupersmit, Benjamin · Inventors: Kupersmit, Benjamin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for the sampling (20) or scientific collection of random, representative data from a population of individuals when the primary method of gathering the responses to a given survey (70) comprising a set of questions contained in a questionnaire with the purpose of identifying the attitudes of the given population is over the Internet (200).
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 May 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 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.