Method and apparatus for reagent addition to a flowing liquid carrier stream
CA 1281208 C · Owner: The Dow Chemical Company · Inventors: Diedering, Deborah E.; Frawley, Nile N.; Harris, William C. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for introducing a reagent into a liquid chromatographic effluent carrier or to the carrier resulting from flow injection analysis by permeation transfer through a porous membrane of a predetermined porosity and area for increased detection sensitivity and reduced sample bandspreading.
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 March 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2008.
- 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.