Internal combustion engine exhaust filters
CA 2335772 A1 · Owner: Adiletta, Joseph G. · Inventors: Adiletta, Joseph G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An engine exhaust filter system (100, 200) comprises a housing (102 202) and , a pleated filter element (114 214). The housing includes an inlet (109 209) , and an outlet (110, 210) and defines an exhaust gas flow path between the inlet and the outlet. The pleated filter element (114 214) is disposed in the , exhaust gas flow path and includes a filter medium (115, 215) and at least first perforated filter support member (116 216). The filter medium (115, 215) is disposed adjacent to the first perforated filter support member (116 216), and includes a portion that extends beyond the first perforated filter support member (116, 216). The extended portion of the filter medium (115 215) …
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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 June 25, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.