Expired Canadian patentCanada
Oil-in-water emulsions of positively charged particles
CA 2132210 C · Owner: Elbaz, Efrat · Inventors: Benita, Simon; Elbaz, Efrat
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oil-in-water emulsion useful as a delivery vehicle of hydrophobic ingredients such as pharmaceutical drugs and cosmetic active agent; wherein the emulsion particles have a net positive charge (i.e. a positive zeta potential).
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 March 15, 1993 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 15, 1993
GrantedJuly 9, 2002
Term endedMarch 15, 2013
Patent numberCA 2132210 C
Classification (IPC)A61K9/10 +2 more
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.