Patent Yard Sign in
Expired Canadian patentCanada

Stable perfumed bleaching compositions

CA 2242419 C · Owner: Pieroni, Lucio · Inventors: Pieroni, Lucio; Scoccianti, Raffaele; Cardola, Sergio

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

Stable perfumed highly acidic liquid compositions are disclosed which comprise a source of active oxygen, a surfactant and a cyclic terpene/sesquiterpene perfume like eucalyptol. Said compositions are particularly suitable to clean hard-surfaces like toilet bowls.

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

  • Filed January 8, 1997 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2019.
  • 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, 1997
GrantedNovember 12, 2002
Term endedJanuary 8, 2017
Patent numberCA 2242419 C
Classification (IPC)C11D7/18 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 8, 1997Patent grantedNov 12, 2002Term endedJan 8, 2017

Sources & verification

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