Low temperature fired, lead-free thick film heating element
CA 2615213 C · Owner: Olding, Timothy Russell · Inventors: Olding, Timothy Russell; Ruggiero, Mary A.; Barrow, David Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lead free, thick film heating element. Known thick film heating elements contain environmentally hazardous material such as lead. This is particularly problematic when manufacturing thick film heating elements as lead is often , used in thick film formulations to allow the glass-based thick film to be processed at low firing temperatures. Using composite sol gel technology the , present invention provides a method to produce a lightweight mica-based thick film heating element based on thick film materials that are free from lead or cadmium. This mica-based element is lightweight has the performance , advantages of a thick film heating element and may be processed at a low , …
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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 July 18, 2006 and granted August 18, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.