Thermal wax-extracting ear candle and method of production
CA 2254159 C · Owner: O'Brien, Linda J. · Inventors: O'Brien, Linda J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The ear candle is in the form of an elongated tubular member tapering in diameter toward an end which is adapted to be inserted into a human ear. The tubular member is composed of unbleached cotton impregnated with beeswax which when ignited burns and releases hot gas. The gas serves to heat and soften wax within the ear thereby aiding in the removal of the wax from the ear. The ear candle is made by providing a rectangular strip of unbleached cotton which has a length in the range of 15 to 20 times its width and in which its warp is parallel to the side edges thereof. A rod having an area coated with melted beeswax and an uncoated area is placed such that it is adjacent to one end edge of …
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 November 16, 1998 and granted January 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2020.
- 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.