Packing with improved capacity and high mass transfer efficiency
CA 2229289 A1 · Owner: Billingham, John Fredric · Inventors: Lockett, Michael James; Billingham, John Fredric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved capacity structured packing arranged in a section or brick wherein the packing section has a flat top and the packing in the base region of the section has a configuration making resistance to gas flow between the packing sheets in the base region less than resistance to gas flow between the sheets in the bulk region to increase capacity while retaining high mass transfer efficiency.
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 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2020.
- 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.