Storage tank dehydration system
CA 2040033 A1 · Owner: Lubberts, Clarence C. · Inventors: Lubberts, Clarence C.; Walcott, William R.; Terpstra, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification discloses a storage tank dehydration apparatus for connection to the air inlet pipe of the tank, having a polymeric quick connect coupling with a through passage and threads at the upper portion thereof threadably attached to the air inlet pipe. The lower portion of the coupling has an axial female cavity with pivotal cam lock levers at the exterior of the coupling and, cam surfaces extendable into the female cavity to engage a peripheral groove on the neck at the upper end of a molded polymeric bottle. The bottle has an internal chamber for desiccant, the chamber being defined by a smooth polymeric, wall. Near the bottom of the bottle are air inlet ports and a lower …
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 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2013.
- 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.