Electrolyte for electrochemical machining of nickel base superalloys
CA 1110575 A · Owner: United Technologies Corporation · Inventors: Jennings, Lawrence J.; Bergquist, Everett J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrolyte useful in the electrochemical machining of the high strength nickel base superalloys is described. The electrolyte is an aqueous solution containing nitric acid hydrochloric acid and citric acid and citric acid in specific quantities. Nickel base superalloys electrochemically machined using the electrolyte of the invention possess extremely smooth machined surfaces which are free from smut and other undesirable surface impurities. -1-
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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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
- 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.