Separating materials
CA 1330074 C · Owner: Merck Patent Gesellschaft Mit Beschraenkter Haftung · Inventors: Kinkel, Joachim; Muller, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to separating materials based on supports containing hydroxyl groups the sur-, faces of which are coated with covalently bonded polymers, the polymers containing identical or different recurring units of the formula I, I, wherein R1 R', R", Y and n have the meaning given in Claim 1, and the use of these materials for the fractionation of biopolymers.
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 June 7, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2011.
- 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.