Test medium for the rapid analysis of engine oils in internal combustion engines
CA 2592951 C · Owner: Horstmeyer, Gert · Inventors: Horstmeyer, Gert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a test medium for the rapid analysis of engine oils in, internal combustion engines having a weight per unit area of 50.0 to 200.0 g/m2 comprising, based on the total weight of the test medium 20.0% by weight to 98.0% by weight of cotton pulp 0.0% by weight to 50.0% by weight of cellulose and 0.1% by weight to 50.0% by weight of silicic acid and/or at least one silicate salt. The present invention also relates to a method for the rapid analysis of engine oils in , internal combustion engines in which a drop of an engine oil to be analysed is applied to , the test medium according to the invention and is allowed to penetrate into the test , medium, and …
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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 December 8, 2005 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2025.
- 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.