Pipe connection
CA 2442477 A1 · Owner: Degussa Ag · Inventors: Ries, Hans; Monsheimer, Sylvia; Goering, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The connection of a plastic pipe to another plastic part wherein, a ) the outer layer of the plastic pipe and the outer layer of the other plastic, part are largely opaque to laser light of a certain wavelength; b) both the plastic pipe and the other plastic part are sheathed at the ends by an additional adaptor made of a plastic transmissive to laser light c) and the adaptor is fastened by means of laser-beam welding produces connecting points which have improved pulling-out resistance and torsional security even at relatively high temperatures. Corresponding composite parts are used in particular as motor-vehicle pipelines.
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 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2025.
- 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.