Method and apparatus for measuring volatile content
CA 2343195 C · Owner: Cem Corporation · Inventors: Collins, Michael J.; Jennings, William Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and associated apparatus are disclosed for measuring volatile content of samples that are particularly suitable for samples that tend to burn when, heated. The method includes the steps of applying microwave radiation at a predetermined power level to a moisture-containing sample to drive volatiles from the, sample, monitoring the weight of the sample during the application of microwave, power, monitoring the temperature of the sample during the application of microwave, power without contacting either the sample or anything in contact with the sample, and moderating the microwave power being applied to the sample based upon the monitored temperature to maintain the …
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 September 17, 1999 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2021.
- 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.