Patent Yard Sign in
Expired Canadian patentCanada

Method and compositions for hard surface cleaning

CA 1278971 C · Owner: Henkel Corporation · Inventors: Malik, Arshad H.

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

Novel liquid hard surface cleaning compositions are provided in the form of a homogeneous aqueous solution which comprises a glycoside surfactant a water, miscible organic solvent, a water soluble detergent builder and water and which effectively cleans soiled hard surfaces without rinsing and without leaving an objectionable residual film on such surfaces after cleaning.

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 January 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 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.
FiledJanuary 8, 1986
GrantedJanuary 15, 1991
Term endedJanuary 15, 2008
Patent numberCA 1278971 C
Classification (IPC)C11D1/66 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJan 8, 1986Patent grantedJan 15, 1991Term endedJan 15, 2008

Sources & verification

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