A device for carrying out sequential thermal treatments under a vacuum
CA 2012270 C · Owner: Etudes Et Constructions Mecaniques · Inventors: Pelissier, Laurent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for treating parts under a controlled atmosphere comprises an airtight chamber (2); treatment cells (31) mounted on the airtight chamber and able to communicate with the airtight chamber for allowing the part to be transferred from the treatment cell to the airtight chamber; a loading-unloading cell (15) each, cell comprising means (19) for gripping the part and keeping same suspended in this cell; at least one device (21) for transferring the part from one cell to another through the airtight chamber (2).
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 March 15, 1990 and granted May 9, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2012.
- 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.