Method of removing a water insoluble surface coating from a surface
CA 1285462 C · Owner: Spindler, William E. · Inventors: Spindler, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of removing a water insoluble surface coating from a surface comprising applying to the coating a formulation comprising between about 0.25 weight percent to about 90.0 weight percent of a fatty acid selected from the group consisting of unsaturated fatty acids, saturated fatty acids, polyunsaturated fatty acids and mixtures thereof, an organic or inorganic alkaline builder present in an amount effective to saponify the fatty acid and still maintain the constituents in solution, and the balance of the formulation is water.
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
- Granted July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
- 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.