Experimental animals for evaluation of therapeutic effects on corneal epithelial damages
CA 2441638 A1 · Owner: Katsuyama, Iwao · Inventors: Katsuyama, Iwao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is intended to provide excellent model animals for corneal epithelial damages; an excellent method of evaluating therapeutic effects of drugs by using these model animals; and drugs screened by using this evaluation method. Model animals for corneal epithelial damages characterized by having been subjected to a treatment of causing corneal epithelial damage symptoms by bringing an absorbent material in to contact with the corneal face to thereby generate a difference in osmotic pressure between the inside and outside of corneal epithelial cells; a method of evaluating drugs characterized by using these model animals; and drugs screened by this evaluation method.
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 4, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2024.
- 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.