Patent Yard Sign in
Expired Canadian patentCanada

Inhibition of corrosion in fluid systems

CA 2533346 C · Owner: General Electric Company · Inventors: Crovetto, Rosa

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

The present invention provides an effective method of inhibiting corrosion on metallic surfaces in contact with a fluid contained in an industrial system which includes adding to such fluid an effective corrosion controlling amount of a phosphoglyceride compound or an emulsified soybean oil.

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 June 21, 2004 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.
FiledJune 21, 2004
GrantedFebruary 7, 2012
Term endedJune 21, 2024
Patent numberCA 2533346 C
Classification (IPC)C23F11/16 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 21, 2004Patent grantedFeb 7, 2012Term endedJune 21, 2024

Sources & verification

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