Microwave oven with automatic defrosting means
CA 1300692 C · Owner: Vigano, Liliana · Inventors: Vigano, Liliana; Idebro, Mats G.; Kokkeler, Franciscus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHZ 86.011C 30.10.1987, ABSTRACT, Microwave oven. A microwave oven comprising a generator (7) for radiating energy, fan means (6) for producing an air flow in the oven cavity humidity sensor means (8) for sensing the humidity in the oven cavity and control means (11) for controlling the supply of energy in dependence on the sensed humidity. The defrosting process is controlled only by the sensed change in humidity. Preferably the control means (11) detects a minimum humidity and interrupt the defrosting process when after said minimum is reached, the difference between said minimum humidity and the detected humidity reaches a predetermined value.
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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
- Granted May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
- 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.