Polyol-based lubricant and its use in cutting elastomers
CA 2267865 A1 · Owner: Beck, Horst · Inventors: Beck, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns lubricating coolants which are based on polyols and nonionic emulsifiers and water and are suitable for lubricating/cooling during the cutting of elastomers. Their use prevents overheating of the cut elastomers and of the cutting tool. Furthermore the resultant cut surface is , suitable for further bonding without requiring any further pre-treatment in , particular when high tensile strength or combined tension and shear resistance are required for the further bonding process such as in the direct fitting of , motor vehicle windows for example.
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 September 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2019.
- 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.