Process for producing bumper made of synthetic resin for automobile vehicle
CA 2189672 C · Owner: Honda Giken Kogyo Kabushiki Kaisha · Inventors: Takeuchi, Atsushi; Ohgane, Hitoshi; Makuta, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An outer layer forming material is injected into a cavity in a mold and then, a core forming material is injected whereby, the core forming material is allowed to flow into the outer layer forming material existing in the cavity and both the materials, are allowed to flow within the cavity. The cavity has a main area for forming a bumper main portion and side areas for, forming bumper sides. A relation d1> d2 is established between, a distance d1 determining a bumper thickness of a first section for forming an upper portion of the bumper main portion and a distance d2 determining a bumper thickness of a second section for forming a lower portion of the bumper main portion. A relation, d3>d1 …
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 November 5, 1996 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2018.
- 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.