Regenerative desiccant air dryer
CA 2203305 C · Owner: Mitsch, Matthew D. · Inventors: Mitsch, Matthew D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas drying canister housing for a desiccant canister in a gas dryer system includes a main portion having an upper base and a lower portion having a lower base. A canister bore is defined between the upper and lower bases when the main and lower portions are fastened to each other. The main portion defines a supply port through which a stream of moisture-bearing gas is directed into the housing for passage through the desiccant canister during a drying mode of operation of the gas dryer system. The main portion also defines a delivery port through which a stream of dried gas is directed from the housing during the drying mode. The lower portion defines a purge port through the lower base …
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 April 22, 1997 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2019.
- 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.