Purified igc immunoglobulins
CA 2069481 C · Owner: Ramage, Paul I. N. · Inventors: Allen, Geoffrey; Ramage, Paul I. N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A purified preparation of an anti-CDW52 antibody which exhibits on size exclusion chromatography: a single peak under non-reducing conditions and two major peaks under reducing conditions. The preparation preferably also exhibits on conventional SDS PAGE: one main band using a non-reduced sample and two main bands using a reduced sample. Additionally the preparation exhibits on reversed phase HPLC: a single sharp peak under nonreducing conditions and two major peaks under reducing conditions. Also a process of purifying an anti-CDW52 antibody formulations containing such a purified preparation and uses thereof.
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 October 17, 1991 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2013.
- 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.