Expired Canadian patentCanada
A pitch post-filter
CA 2189134 C · Owner: Flomen, Felix · Inventors: Flomen, Felix; Bialik, Leon
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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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 April 27, 1995 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 1995
GrantedDecember 12, 2000
Term endedApril 27, 2015
Patent numberCA 2189134 C
Classification (IPC)G10L19/14 +1 more
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.