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Expired Canadian patentCanada

Moulded articles

CA 1190945 A · Owner: Didier-Werke A.G. · Inventors: Eschner, Axel; Stein, Hermann

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A moulded article is made from a composition comprising a mixture of 100 parts by weight ceramic fibres or a mixture of at least 20% by weight ceramic fibres and up to 80% by weight of a fired bonded granular material comprising ceramic fibres bonding, agent and refractory materials with 2 to 20 parts by weight clay and/or other conventional refractory materials 0 to 8 parts by weight phosphate bonding agent 0 to 10, parts by weight organic bonding agent there being at, least two parts by weight bonding agent present with, water. The mixture is compressed whilst being moulded into the desired shape and then dried and/or fired. The article has a density of 0.5 to 1.8 g/cm3 and a hot bending …

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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 July 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2002.
  • 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 15, 1982
GrantedJuly 23, 1985
Term endedJuly 23, 2002
Patent numberCA 1190945 A
Classification (IPC)C04B35/80 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedFeb 15, 1982Patent grantedJuly 23, 1985Term endedJuly 23, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.