Temperature indicator for use in a pressurized environment
CA 2260908 C · Owner: Ray, Jennifer L. · Inventors: Cunkelman, Brian L.; Ray, Jennifer L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A temperature indicator for providing a visual indication that a pressurized fluid has exceeded a specified temperature. Such pressurized fluid being contained within a container bounded by a container wall. Such container wall being provided with an aperture for mounting of the temperature indicator therein such that the temperature indicator protrudes through such aperture and into such pressurized fluid contained within such container. The temperature indicator includes a housing member a cavity provided in the housing member and a bore extending from an interior portion of the cavity to an exterior surface of the housing member. The exterior surface of the housing member is visible from …
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 5, 1999 and granted November 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2021.
- 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.