Use of an odorant for treating headaches
CA 2290457 A1 · Owner: Hirsch, Alan R. · Inventors: Hirsch, Alan R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Use of an odorant is provided for alleviating the symptoms of a migraine or other form of headache. Also provided is a method for preventing or reducing the symptoms and/or duration of a migraine or other headache through the administration of a hedonically pleasant odorant that is inhaled by a person who is prone to or suffering from a headache. A preferred odorant is one having the characteristics of a green apple scent. Preferably the person is , presented with the odorant at a suprathreshold concentration and inhales the , odorant for about 5-15 minutes while in a prone position in a quiet darkened , room.
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 May 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 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.