Antistatic mat
CA 2033300 C · Owner: Daiwa Co. Ltd. · Inventors: Yamada, Kohei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an antistatic mat for, example, a chair mat used for computer operation a floor mat, to be used at a room door in an elevator or in front of an, elevator door and a car floor mat, and more particularly relates to an antistatic mat which is capable of instantly discharging the static electricity charged on a human body removing a disagreeable sensation which is occasionally generated by the discharging of the static electricity.
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 December 27, 1990 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2012.
- 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.