Paint line cleaner
CA 2253607 C · Owner: Gage Products Company · Inventors: Maxwell, Jeffrey W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cleaning composition for paint delivery systems includes 3-90 % of an organic solvent which may comprise one or more aromatic hydrocarbons aliphatic hydrocarbons and aliphatic esters. The composition also includes between .5 and 30 % of a hydroxy carboxylic acid such as glycolic acid as , well as a coupling agent which may comprise one or more alcohols glycols or , glycol ethers.
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 May 7, 1997 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2019.
- 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.