Cleaning methods and apparatus for range grill units
CA 2204342 C · Owner: Maytag Corporation · Inventors: Strader, Michael A.; Stillman, Joanne G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for cleaning grill range units and for removing accumulated grease and other obstacles blocking the grease-carrying conduits in their grease collection systems is provided for cooktops including a grill, a drip pan for collecting grease, a drain opening in the drip pan and a conduit leading from the drain opening to a grease collector. A method of cleaning a cooktop comprises the steps of providing a long semi-rigid but flexible drain cleaner having a length at least about equal to the length of and a diameter smaller than the diameter of said conduit and inserting the drain cleaner into the drain opening and pushing the drain cleaner through the conduit to remove …
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 May 2, 1997 and granted September 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2019.
- 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.