Expired Canadian patentCanada
Set - up for production of hydrogen gas by thermo-chemical decomposition of water using steel plant slag and waste materials
CA 2622171 C · Owner: Tathavadkar, Vilas · Inventors: Tathavadkar, Vilas; Bhattacharjee, Debashish; Mukharjee, T.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel method for producing hydrogen gas from water comprising adding water to the slag and carbonaceous flux to produce hydrogen by thermo-chemical decomposition of water.
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 June 13, 2006 and granted December 23, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 13, 2006
GrantedDecember 23, 2014
Term endedJune 13, 2026
Patent numberCA 2622171 C
Classification (IPC)C01B3/02
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.