Columnar body and process for its manufacture
CA 2054255 A1 · Owner: Hentschel, Martin · Inventors: Hentschel, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a columnar body and a process for its manufacture. The body has a thermoplastic plastics matrix and embedded secondary bodies of a non-creeping solid material adhered to the plastics matrix. The secondary bodies are plates which substantially overlap each other in longitudinal and transverse direction and extend substantially parallel to one another and to the axis of the body. The body is manufactured by using an extruder. It has improved mechanical characteristics in longitudinal and transverse direction and especially improved bending, compression and kink resistance.
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 October 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2013.
- 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.