Wheel cleaning composition containing acid fluoride salts
CA 2177278 A1 · Owner: Howe, Michael · Inventors: Howe, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cleaning compositions useful for cleaning wheel soils from surfaces of printed steel printed aluminum, chrome, stainless steel clear coated aluminum and plastic are described. The cleaning composition has a pH of about 3 to about 6.5 and comprises at least one acid fluoride salt and at least one organic soil removing agent selected from the group consisting of detergents and organic solvents.
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 December 6, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2016.
- 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.