Membrane-based fluid separations apparatus
CA 2128329 C · Owner: Wolcott, Duane K. · Inventors: Deleo, Gary D.; Wolcott, Duane K.; Westlake, Theodore N. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus broadly useful for analytical or for fluid separations purposes which is characterized by a grooved support member having a tubular membrane, optical fiber capillary column or the like supported within the groove of such support member, and various analytical, process control or fluid separations apparatus incorporating the same.
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 18, 1993 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2015.
- 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.