Method for painting pretreatment of plastic formings and cleaner for painting pretreatment
CA 2024067 A1 · Owner: Nobe, Kazuo · Inventors: Ushio, Akira; Nobe, Kazuo; Sobata, Tamotsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of painting pretreatment for plastic formings and cleaner for painting pretreatment, Abstract of the disclosure It is required to undergo painting pretreatment of a plastic formings by a method which is replacable of a vapor-washing method using a chlorinated hydrocarbon in order to prevent from the environmental destruction by the chlorinated hydrocarbon. A plastic formings is brought in contact and treated with a treating solution prepared by suspending a hydrocarbons solvent in water. A plastic formings is brought in contact and treated with a treating solution containing an alkali component and then, said treating solution attaching on the surface of said formings is rinsed out …
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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 August 27, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2012.
- 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.