Magnetic seal for refrigerator having double doors
CA 2105732 C · Owner: Kiel, Lowell Morris · Inventors: Kiel, Lowell Morris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnetic seal is disclosed for releasably sealing two doors arranged side by side on a thermally insulated cabinet such as a refrigerator or freezer. A retainer gasket is affixed to the inner edge of each door. One of the retainer gaskets encloses a magnet and retains the magnet fixed in place relative to the door. Another retainer gasket is affixed to the other door and is formed of a base a sleeve enclosing a second magnet, and two flexible webs connecting the sleeve to the base. The retainer gaskets and magnets are arranged so that the magnets impart an attractive force on each other and releasably seal the doors. When one of the doors is opened slightly the magnets are arranged to …
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 8, 1993 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2015.
- 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.