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Canadian application, no grantCanada

Hydrozirconated matrix and process for polyolefin production

CA 2359283 A1 · Owner: Rohm And Haas Company · Inventors: Bohling, James Charles; Reichl, Jennifer Annette; Lundquist, Eric Gustave

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A hydrozirconated matrix for the production of polyolefins is disclosed. The hydrozirconated matrix is prepared from the reaction of an organozirconium composition and an olefin based material. A process is described for using the hydrozirconated matrix to prepare a range of polyolefin products.

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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 October 18, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 18, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 18, 2001
GrantedNo grant recorded
Term endedOctober 18, 2021
Patent numberCA 2359283 A1
Classification (IPC)C08F4/64 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 18, 2001Term endedOct 18, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.