Stabilized dental cream
CA 1294556 C · Owner: Schelm, Sandra Lee · Inventors: Schelm, Sandra Lee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dental cream stabilized for contact with a polyolefin resin surface of a package such as a laminate tube a mechanical dis-, penser or a flexible sachet. The dental cream contains as at least the major dentally acceptable water-insoluble polishing material alpha-alumina trihydrate, a liquid vehicle and a gelling agent and an agent to reduce pH containing phosphate ion. The liquid vehicle contains water glycerine and sorbitol, and a vegetable oil as an additive to reduce syneresis due to contact between the dental cream and the polyolefin resin.
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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.