Electrically heated toolbox
CA 2090504 C · Owner: Malcomson, Kirk · Inventors: Malcomson, Kirk; Schmidt, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrically heated toolbox for heating hand tools that have been stored or used in a cold environment. The toolbox is a multiple drawer container which has installed therein heating sheets integrally connected to an outside electrical power source, alternating current (AC) or direct current (DC). The heating sheets warm the hand tools by radiated heat or direct heat when the heating sheets are connected to the outside power source. A desired temperature may be obtained by using the rheostat temperature setting device. The toolbox may be connected to a standard AC plug connection, a DC vehicle battery or, if desired a cigarette, lighter outlet of a vehicle.
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 February 26, 1993 and granted May 1, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.