Patent Yard Sign in
Expired Canadian patentCanada

Wallpaper adhesives

CA 1304185 C · Owner: Rhodia Inc. · Inventors: Yeung, Dominic Wai Kwing

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

An adhesive composition suitable for application to a wallcovering to form a prepasted wallcovering comprises an organic solvent, a surfactant, a water swollen crosslinked ionic polymeric component obtainable from an ethylenically unsaturated water soluble monomer and water in an amount effective to cause the composition, when applied to the wallcovering to form a continuous, substantially particle-free film. .

Read the whole patent

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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1989
GrantedJune 23, 1992
Term endedJune 23, 2009
Patent numberCA 1304185 C
Classification (IPC)C09J133/06 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMay 29, 1989Patent grantedJune 23, 1992Term endedJune 23, 2009

Sources & verification

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