Chromatography column
CA 1232845 A · Owner: Cuno, Inc. · Inventors: Chu, Chaokang; Dailey, Nils; Leeke, Gordon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chromatography column for effecting chromatographic separation of at least two components of a sample flowing therethrough comprising a housing at least one solid stationary phase in the housing comprising, a plurality of layers of sheets of swellable fibrous matrix having chromatographic functionality and being effective for chromatographic separation, a spacer means between each fibrous matrix layer for controlling swelling of the matrix and enhancing the distribution of sample flowing through the stationary phase by substantially evenly dispersing the sample across the matrix; means for distributing the same through the stationary phase and means for collecting the sample after the the …
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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
- Granted February 16, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2005.
- 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.