Expired Canadian patentCanada
Cementitious composition
CA 1320511 C · Owner: Viles, Robert Franklyn · Inventors: Viles, Robert Franklyn
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cement composition to be combined with water comprises high alumina cement, beta anhydrite, aluminium sulphate a source of, free lime and a reactive filler eg. blast furnace slag to form a, rapid setting and hardening durable material.
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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 July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 28, 1988
GrantedJuly 20, 1993
Term endedJuly 20, 2010
Patent numberCA 1320511 C
Classification (IPC)C04B28/06 +2 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.