Vegetable derived petroleum jelly replacement
CA 2225352 C · Owner: Natunola Health Inc. · Inventors: Han, Nam Fong; Zhang, Xiao Ying
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a replacement for petroleum jelly as a base for products suitable for application to the skin. It is comprised of vegetable oil and silica. The vegetable oil is preferably a canola oil and more preferably a high oleic acid/low linolenic acid canola oil. The silica is preferably untreated fumed silica powder. The vegetable oil is preferably present in the range of 50-90% and most preferably 80%. The silica is present in the range of 5-15% and most preferably 10%. Other ingredients which may be added include vitamin E margarine or butter, starch, and sunscreen. The base of the present invention has a significantly higher malting temperature than petroleum jelly.
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 January 30, 1998 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2020.
- 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.