Patent Yard Sign in
Expired Canadian patentCanada

Cementitious compositions

CA 1300649 C · Owner: Fosroc Mining International Limited · Inventors: Smart, Roderick Macdonald

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 dry composition comprising an aluminous cement and a calcium sulphate, and preferably an accelerator and a water soluble fluoride may be reacted with water in a wide range of proportions to form a rapid setting material which develops high compressive strength.

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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.
FiledApril 7, 1988
GrantedMay 12, 1992
Term endedMay 12, 2009
Patent numberCA 1300649 C
Classification (IPC)C04B7/32 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 7, 1988Patent grantedMay 12, 1992Term endedMay 12, 2009

Sources & verification

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