Storage tank assembly
CA 2177079 A1 · Owner: Andrew, Adam Christopher · Inventors: Andrew, Brenda; Andrew, Adam Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A storage tank assembly in-, cludes a storage tank (10) having a hollow interior (18) and also having, access means (18A) for passage of a liquid into the hollow interior (18), at least one layer (11) of resilient material located within the hollow interior (18), bearing means (12, 24, 33, 47, 53) associated with said at least one layer (11, 32, 45, 52) of resilient material and actuating means (15, 23, 28 54) to actuate movement of said, bearing means (12 24, 33, 47, 53), so as to compress and subsequently relax said at least one layer (11, 32, 45 52) of resilient material so as to, facilitate absorption of liquid passed into the hollow interior (18).
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 November 17, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2016.
- 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.