Canadian application, no grantCanada
Hydrogen storage alloy
CA 2295204 A1 · Owner: Duracell Inc. · Inventors: Trainer, Philip D.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The surfaces of material containing a hydrogen storage alloy are treated with an organometallic compound to provide the alloy with corrosion resistance.
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 May 28, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 28, 1998
GrantedNo grant recorded
Term endedMay 28, 2018
Patent numberCA 2295204 A1
Classification (IPC)H01M4/38 +1 more
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.