Defrosting method for a microwave oven
CA 2295413 C · Owner: Lee, Won-Woo · Inventors: Shon, Jong-Chull; Lee, Won-Woo; Jang, Bo-In
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A defrosting method for a microwave oven capable of variably adjusting a level of output power of a magnetron in accordance with data detected from a sensor comprising the steps of (a) detecting a change degree of output data from a sensor for a predetermined time period; and (b) adjusting a level of output power of a magnetron in accordance with the change degree of the output data from the sensor.
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 January 13, 2000 and granted April 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 2022.
- 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.