Thermal sensitive deodorant wafer
CA 1164803 A · Owner: Landsberger, David · Inventors: Landsberger, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
File No. C812, THERMAL SENSITIVE DEODORANT WAFER ABSTRACT OF THE DISCLOSURE, A thermal sensitive deodorant wafer is disclosed which is used to neutralize odors caused by subjecting certain materials to elevated temperatures. A pad (2) is impregnated with a heat releasable deodorant and is encapsulated in a thermal sensitive shell (4) to form a waferlike element (6). The shell decomposes when subjected to the elevated temperatures whereupon the deodorant is released to neutralize the odors.
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 April 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2001.
- 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.