Patent Yard Sign in
Expired Canadian patentCanada

Calco-magnesian aqueous suspension and method for the production thereof

CA 2533529 C · Owner: Habib, Ziad · Inventors: Diaz Chavez, Luis Alfredo; Salter, Timothy L.; Langelin, Henri-Rene

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

A calco-magnesian suspension comprising solid matter particles having prior to suspension, a specific surface calculated according to the BET method which is less than or equal to 10 m?2¿/g. The invention also relates to a method for the production thereof.

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 July 27, 2004 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 27, 2004
GrantedApril 3, 2012
Term endedJuly 27, 2024
Patent numberCA 2533529 C
Classification (IPC)C01F11/02 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 27, 2004Patent grantedApril 3, 2012Term endedJuly 27, 2024

Sources & verification

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