Microwave video viewing device
CA 1269721 C · Owner: Kelly, William John · Inventors: Derobertis, Robert Phillip; Smithwrick, John Henry; Glasser, George Marvin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microwave viewing device and more particularly, an arrangement facilitating the internal viewing of a microwave oven during the preparation of a food product or the like in a microwaving process. The viewing device incorporates a tubular support which is extendable through an opening formed in a side wall of a microwave oven and which, extends into close proximity to a food product being subjected to microwave processing in the oven. The viewing device includes a member constituted of telescopable tubular sections; in essence, which member is adapted to be varied in length by adding or removing sections, in dependence upon the size of the food product contained in the microwave oven and, …
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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 29, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 2007.
- 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.