Cartridge filter including improved seal arrangement and methods
CA 2484208 A1 · Owner: Donaldson Company, Inc. · Inventors: Durre, Reynold F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid filter (10) assembly includes a housing (14) having a closed end and an open end; a filter element (12) operably oriented in the housing; a baffle plate (52) mounted to operably cover the housing open end; the baffle plate (52) including a first axial face (68) and an outer circumferential wall (58) circumbscribing the first axial face; the outer circumferential wall (58) being groove-free; the first axial face defining at least a first sealing groove (84); and a sealing gasket (88) oriented in the first sealing groove (84); the sealing gasket (88) forming a seal between the housing and the baffle plate. Methods of constructing, installing and servicing includes , fluids …
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 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2025.
- 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.