Apparatus for the extrusion of plastic pipes or profiles
CA 2283883 A1 · Owner: Mayrhofer, Franz · Inventors: Mayrhofer, Franz; Schwaiger, Meinhard
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 an apparatus for the extrusion of plastic pipes or profiles with, - an extruder with an extruder flange; - an extrusion die with a die flange through which the extrusion die is detachably connectable with the extruder flange;, - a fastening element with two halves which are arranged to embrace the extruder flange and the die flange; - a tensioning element in order to press the two halves of the fastening element against the flanges. An improved function can be achieved in such a way that the two halves of the fastening element are fastened swivelably on the extruder and that they are mechanically coupled in order to perform an oppositely directed swiveling …
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 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 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.