Expired Canadian patentCanada
Filtering apparatus
CA 2186136 C · Owner: Inhoco 981 Limited · Inventors: Johnson, Joe
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filtering apparatus comprises a bag or sleeve connected to a profiled resilient band (10, 20). The band is operative to sealingly engage an aperture (13, 26) in a further body (16 27). The profiled band (10, 20) has a one piece construction.
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 March 21, 1995 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 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.
FiledMarch 21, 1995
GrantedJune 19, 2001
Term endedMarch 21, 2015
Patent numberCA 2186136 C
Classification (IPC)B01D46/42 +2 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.