Boiler corrosion inhibitor compositions and method
CA 1294420 C · Owner: Neil, Lois J. · Inventors: Neil, Lois J.; Sepelak, Dennis J.; Sinha, Rabindra K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION, "NOVEL BOILER CORROSION INHIBITOR COMPOSITIONS AND METHOD", ABSTRACT OF THE INVENTION, A method for inhibiting corrosion due to dissolved oxygen wherein a trihydroxybenezene compound hexahydroxybenezene or levadopa, alone or in combination with conventional oxygen scavengers is, added to boiler water to prevent corrosion by reducing dissolved oxygen levels in boiler feedwater.
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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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 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.
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.