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Expired Canadian patentCanada

Solid, non-corrosive detergent compositions

CA 1079602 A · Owner: Rhone-Poulenc Industries · Inventors: Joubert, Daniel

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 non-corrosive detergent cleaning composition adapted primarily for cleaning dishes and textiles formulated to contain a mixture of detergent agents, oxidizing or disinfecting agents, non-ionic or a mixture of non-ionic and anionic agents, and which may include filling agents the improvement, wherein the composition is formulated to contain a sodium silico-aluminate which inhibits coloring corrosion and degrad-, ation of chlorine derivatives with or without 3 silico-aluminate to inhibit tarnishing of aluminum.

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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 June 17, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 17, 1980
Term endedJune 17, 1997
Patent numberCA 1079602 A
Classification (IPC)C11D3/07 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 17, 1980Term endedJune 17, 1997

Sources & verification

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