Process for removing hydrogen phosphide from waste air
CA 1318771 C · Owner: Svara, Jurgen · Inventors: Svara, Jurgen; Thummler, Ursus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for removing hydrogen phosphide from waste air, Abstract of the disclosure, For removing hydrogen phosphide from waste air the, hydrogen phosphide-containing waste air is passed at temperatures from 50 to 350°C over a catalyst which is composed, at least on its surface, of at least one metal which, in a 1-molar acidic aqueous solution has a, potential which is at least 200 mV more positive than that of the standard hydrogen electrode.
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
- Granted June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
- 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.