Compression molding process and article made by the process
CA 2466660 A1 · Owner: Mueller, Bruce M. · Inventors: Lay, Dieter F.; Mueller, Bruce M.; Nejad, Ben
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molded article is produced by a method of compression molding employing a specially shaped billet (60) of thermoplastic material which is positioned at a predetermined location in a predetermined orientation with respect to the mold cavity surfaces (91, 92, 93) of a mold part (90). In a preferred embodiment, the billet (60) has a generally egg shape and is located adjacent a mold surface (92) defining a small mold cavity region between two larger cavity regions.
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 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2024.
- 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.