Expired Canadian patentCanada
Process for producing binder-free thermal insulating moulded articles
CA 1203974 A · Owner: Degussa Aktiengesellschaft · Inventors: Kleinschmit, Peter; Schwarz, Rudolf; Gliem, Sabine
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Binder-free thermal insulating material mixtures are mixed during the mixing operation with substances reacting basically in aqueous solution and are subsequently moulded into thermal insulating moulded articles.
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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 May 6, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 6, 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.
FiledFebruary 16, 1984
GrantedMay 6, 1986
Term endedMay 6, 2003
Patent numberCA 1203974 A
Classification (IPC)C04B14/38 +1 more
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.