Apparatus for circulating a fluid
CA 2339780 A1 · Owner: Hall, Alethea Rosalind Melanie · Inventors: Hall, Alethea Rosalind Melanie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for circulating a fluid, for example a liquid or a gas from a first , end to a second end is disclosed. The apparatus comprises: a tube of a flexible material divided by dividing walls of a flexible material into an array of compartments or cells running the length of the tube the , compartments being arranged in rows and columns so that the tube divided by dividing walls has a honeycomb structure with a first end of the tube on a , base and a second end of the tube above the first end of the tube; first flow means and second flow means a fluid inlet into the first row of compartments; and a fluid outlet from the last row of compartments; so that fluid introduced through the …
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 August 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2021.
- 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.