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Expired Canadian patentCanada

Moisture tempered, storage stable single component polyurethane systems and their application

CA 1332020 C · Owner: Basf Aktiengesellschaft · Inventors: Gerold, Friedrich; Schleier, Gisbert

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract of the Disclosure, This invention relates to moisture tempered storage, stable, single component polyurethane systems prepared from a polyurethane prepolymer derived from an aromatic polyisocyanate, and a polyaldimine, which are used for preparing polyurethane elastomers or polyurethane coatings having improved temperature resistance.

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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 September 13, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 13, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 10, 1987
GrantedSeptember 13, 1994
Term endedSeptember 13, 2011
Patent numberCA 1332020 C
Classification (IPC)C08G18/10 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 10, 1987Patent grantedSep 13, 1994Term endedSep 13, 2011

Sources & verification

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