A supported metal membrane, a process for its preparation and use
CA 2354952 A1 · Owner: Kempf, Bernd · Inventors: Drost, Ernst; Kempf, Bernd; Wieland, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a supported metal membrane which contains a metal membrane, on a support surface of a porous membrane support. The supported metal membrane is, obtainable by applying the metal membrane to the support surface of the membrane, support, wherein the pores in the membrane support are sealed at least in the , region of, the support surface prior to applying the metal membrane and are opened by removing, the auxiliary substance only after applying the metal membrane.
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 10, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2023.
- 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.