Egg cooking indicator and method of producing same
CA 1071428 A · Owner: Chadwick, Duane G. · Inventors: Chadwick, Duane G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device having heat transfer characteristics generally corresponding to an egg and including an indicating means to indicate when a desired degree of cooking of an egg, of any size, subjected to the same treatment as the device, has been achieved. The device is produced by suspending a properly insulated thermometer in a transparent tube with an air space substantially surrounding the thermometer and thereafter sealing the open end of the tube.
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
- Granted February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- 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.