Thermally insulating molded body and process for its production
CA 2269818 C · Owner: Kratel, Gunter · Inventors: Wilde, Eugen; Mikschl, Bernard; Klaus, Johann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heat insulating moulded body made of inorganic material and inorganic reinforcement fibres is disclosed, as well as a process for producing the same and its use. The moulded body is characterised by the following composition: (a) 30-70 wt.% blown vermiculite; (b) 15-40 wt.% inorganic binder; (c) 0-20 wt.% infrared opacifier; (d) 15-50 wt.% microporous material; (e) 0.5-8 wt.% reinforcement fibres which contain maximum 2 wt.% B2O3 and maximum 2 wt.% alkali metal oxides, with respect to the weight of the reinforcement fibres.
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 23, 1997 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2019.
- 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.