A method of controlling the oxidation of chemicals during storage using noble gases
CA 2102779 A1 · Owner: Spencer, Kevin C. · Inventors: Spencer, Kevin C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of controlling oxidation of a chemical or chemical preparation during storage, which entails contacting the chemicals or chemical preparations with at least one noble gas a mixture of, noble gases or a gaseous mixture containing at least one noble gas during at least a portion of storage.
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 March 31, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2015.
- 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.