A composition and a process for removing rosin solder flux with terpene and hydrocarbons
CA 2111337 C · Owner: Hayes, Michael E. · Inventors: Hayes, Michael E.; Sell, Robert D.; Hosman, Donald P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a composition and a process of removing rosin solder flux and adherent soil from a , printed circuit board. The composition comprises solvating agent and rinsing agent. Wherein the solvating agent is selected from the group consisting of terpenes, terpene-based compounds and rinsing agent is selected from the group consisting of chlorinated hydrocarbons, chlorofluorocarbons, fluorocarbons hydrofluorocarbons, hydrochlorofluorocarbons alcohols, fluorinated alcohols, and mixture of these. The process for removing rosin solder flux from a circuit board comprises contacting the printed circuit board with a boiling liquid comprises solvating agent and rinsing …
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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
- Filed June 15, 1992 and granted September 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2014.
- 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
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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.