Device for the disposal of liquid media
CA 2254780 C · Owner: Martinitz, Hans-Peter · Inventors: Martinitz, Hans-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for disposal of liquid media such as coolant and lubricant fluids, containing production residues such as, chips from industrial processes in which these media are conveyed from at least one accumulation site through gutters and/or pipes to a recycling container. The media are conveyed from the recycling container through a pipe connected thereto close to the bottom to at least one collecting tank. The device is also intended to convey foamed media from the recycling container to the collecting tank at limited equipment cost. The recycling container is divided by a pressure-tight partition containing an operable valve into an upper supply chamber and a lower delivery chamber. A …
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 26, 1998 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2020.
- 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.