Temperature measuring apparatus for print card and air velocity measuring apparatus
CA 2227014 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Saikawa, Shinichi; Takata, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mirror is moved in parallel to a print card to reflect the infrared radiation radiated from the print card. The reflected infrared radiation is detected by a detector such as an infrared camera though a wind rectifying plate which can permeate the infrared radiation but interrupts the air stream between the inside and outside of a card rack. The signal corresponding to the detected infrared radiation is processed by a personal computer to measure the temperature distribution.
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 January 15, 1998 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 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.