Vaporizing unit
CA 1284341 C · Owner: Bowen, John G. · Inventors: Bowen, John G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrically energized vaporizing unit for medications, room deodorizers, room scenting compounds room insecticides, and the like, is provided which is simple and inexpensive in its construction and which is compact in size. The vaporizing unit has one or more compartments which are adapted to be filled with a liquid to be vaporized, or to hold a solid tablet saturated with a substance to be vaporized, the compartments being heated by positive thermal coefficient (PTC) electrical heating elements in conjunction with paraffin wax the melting, point of the wax being selected to correspond to the vaporizing temperature of the particular substance in the compartments. The vaporizing unit is …
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 May 21, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 2008.
- 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.