Process for the production of vinyl acetate
CA 2280221 A1 · Owner: Kitchen, Simon James · Inventors: Salem, George Frederick; Williams, Bruce Leo; Kitchen, Simon James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a process for production of vinyl acetate in which ethylene liquid, acetic acid and an oxygen-containing gas are fed to a fluid bed reactor containing a, catalyst comprising a Group VIII metal a promoter and a co-promoter, stickiness of the catalyst is reduced by limiting the amount of co-promoter to up to 6% by weight of the, catalyst.
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, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2021.
- 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.