Tile and grout cleaner
CA 1088840 A · Owner: Bristol-Myers Squibb Company · Inventors: Bolan, Joseph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tile and grout cleaning composition is provided which consists essentially of about 1.5 to 7.0 weight percent of a sequesting agent expressed on a free acid basis; about 1.0 to 3.0 weight percent of an alkaline hydroxide; 1.0 to 4.0 weight percent of 2-heptadecyl-1-carboxymethyl- 1-(2-hydroxyethyl)-2-imidazolinium chloride; and the balance is water wherein the composition is capable of existing as a thixotropic gel at room temperature and of forming a water-impermeable outer skin upon application of the composition to the tile or grount surface.
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 November 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 1997.
- 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.