Toothpaste
CA 1183780 A · Owner: Beecham Inc. · Inventors: Stier, Roger E.; Minczuk, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-phase toothpaste consists of an opaque white paste matrix containing a dental abrasive and four, transparent gel stripes spaced equidistantly around the matrix. Two of the gel stripes are of one colour and two are of another colour. The toothpaste provides good cleaning and polishing properties, coupled with high visual attractiveness.
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 March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
- 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.