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Expired Canadian patentCanada

Fireproof materials and their producing processes

CA 1290487 C · Owner: Kim, Jae W. · Inventors: Kim, Jae W.

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

Fireproof material for treating combustibles by spraying or applying, including and being made from a solution of calcium chloride and boric acid ; a mixture of silicone resins sodium silicate and, vinyl acetate resins ; a mixture of ammonium mono-phosphate and silica gel ; a mixture of a paper powder treated with boric acid ; earth/rock powder ; and diatomite powder, is disclosed. The mixture of a said paper powder treated with boric acid, said earth/rock powder and said diatomite powder may be omitted.

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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 October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 2, 1987
GrantedOctober 8, 1991
Term endedOctober 8, 2008
Patent numberCA 1290487 C
Classification (IPC)C08K3/38 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJune 2, 1987Patent grantedOct 8, 1991Term endedOct 8, 2008

Sources & verification

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