Foam insert for pressure vessels
CA 2446030 A1 · Owner: Crest Foam Industries. Inc. · Inventors: Di Stasio, Anthony A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foam insert is adapted for use in combination with a pressure vessel. The cylinder is made of an open cell foam and is sized to fit within the pressure vessel. The cylinder has a top portion and a bottom portion that correspond to a top and bottom of the pressure vessel. The top portion of the foam cylinder has a concave recess.
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 October 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2025.
- 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.