Chromatography purification column
CA 2076049 A1 · Owner: Hart, Robert L. · Inventors: Hart, Robert L.; Wong, David M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to chromatography column for process scale high performance purification which has, high stability and structural integrity regardless of the internal diameter or operating pressures. The chromatography column according to the present invention includes a sealing arrangement which enables the production of internally leak proof chromatography columns having large internal diameters at relatively low cost. The present invention also relates to the seal for the chromatography column.
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 February 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 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.