Hollow bodies of plastics material
CA 1214013 A · Owner: Bayer Aktiengesellschaft · Inventors: Schauf, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Complicated hollow bodies with undercuts and for multidimensional curves which do not permit the cores to be drawn out of the finished part, are pressed together from prefabricated shells (1) under simultaneously exact pre-shaping and are connected along the joints by injection-moulded plastics material.
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
- Granted November 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 2003.
- 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.