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Expired Canadian patentCanada

Cleaning and waterproofing composition

CA 1263801 C · Owner: Kemerer, Beverly Kay · Inventors: Kemerer, Beverly Kay

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A composition and method for cleaning and waterproofing fabrics and textiles is disclosed. The composition comprises a siloxane resin copolymer a, polydimethylsiloxane fluid, a titanate ester and a dimethylsiloxane-oxyalkylene block copolymer dispersed in a major portion of a solvent selected from volatile cyclic dimethylsiloxanes, petroleum hydrocarbons chlorinated, hydrocarbons, aromatic hydrocarbons or mixtures thereof.

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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 December 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 12, 2006.
  • 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 12, 1987
GrantedDecember 12, 1989
Term endedDecember 12, 2006
Patent numberCA 1263801 C
Classification (IPC)C11D3/37 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedMarch 12, 1987Patent grantedDec 12, 1989Term endedDec 12, 2006

Sources & verification

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