Process for the preparation of thermoplastic honeycomb shaped structures without machining
CA 2056759 A1 · Owner: Basf Structural Materials Incorporated · Inventors: Fell, Barry Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Shaped honeycomb parts are prepared in a continuous process wherein webs of fiber-reinforced or non-reinforced thermoplastic are slit in a predetermined manner such that the finished honeycomb may be separated by hand into parts having a predetermined geometry. 46
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 December 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 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.