Canadian application, no grantCanada
Irradiated, oxidized olefin polymer dispersing agents
CA 2507200 A1 · Owner: Song, Cheng Q. · Inventors: Fezza, Richard J.; Song, Cheng Q.; Schneckenburger, Daniel E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Irradiated, oxidized olefin polymer dispersing aids for use in the manufacture of additive concentrates and additive-containing olefin polymer compositions.
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 November 24, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 24, 2003
GrantedNo grant recorded
Term endedNovember 24, 2023
Patent numberCA 2507200 A1
Classification (IPC)C08L23/02 +2 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.