Screening arrangement
CA 2397050 C · Owner: Freissle, Peter Helmut Franz · Inventors: Freissle, Peter Helmut Franz; Freissle, Manfred Franz Axel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A screening panel 10 comprises a peripheral frame 12 consisting of a pair of mutually laterally spaced side members 14 16, which are integral with a pair of mutually axially spaced end members 18 20. The side members 14, 16 and end members 18 20 define corners of the panel 22.1, 22.2 22.3 and 22.4 and the peripheral frame 12 where they meet. A plurality of mutually spaced ribs 15 extend across the periphery of the panel 10 to define a screening surface. The side members and end members are rectangular in cross-section thereby defining substantially flat upper peripheral surfaces 12.1 outer peripheral surface 12.2 and lower peripheral surface 12.3 of the peripheral frame 12 and thus also the …
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 August 7, 2002 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2024.
- 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.