Treatment of inner ear hair cells
CA 2268331 C · Owner: Gao, Wei-Qiang · Inventors: Gao, Wei-Qiang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions, methods, and devices are provided for inducing or enhancing the growth, proliferation, regeneration of inner ear tissue particularly inner ear hair cells. In addition provided are compositions and , methods for prophylactic or therapeutic treatment of a mammal afflicted with an inner ear disorder or condition particularly for hearing , impairments involving hair cell damage loss, or degeneration, by , administration of a therapeutically effective amount of IGF-1 or FGF-2 or , their agonists, alone or in combination.
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 October 28, 1997 and granted July 26, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2019.
- 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.