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CA 1045618 A · Owner: Tioxide Group Limited · Inventors: Urwin, Donald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IMPROVEMENTS IN AND RELATING TO PRDDUCTS" A process for manufacturing a carrier for an active entity by neutralising titanium tetrachloride to precipitate TiO2 which is dried and then heated to prcduce a carrier having a hardness of 85 to 100, a bulk density of greater than 1.0 grams per millilitre, a specific surface area of from 0.6 to 2 square metres per gram and at least 90% of its TiO2 in the rutile form. The carrier is particularly useful for supporting enzymes or vanadium pentoxide. -1-
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
- Granted January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.