Composition
CA 2017029 C · Owner: Beecham Group P.L.C. · Inventors: Brobyn, Susan Elizabeth; Mackie, Robert Duncan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aerosol compositions for topical application conferring a cooling effect on the body and suitable for use in the alleviation of pain, such as muscular or rheumatic pain, which compositions do not contain environmentally unacceptable chlorofluorocarbons but satisfy safety guidelines on flammability and comprise, an organic substance, other than a chlorofluorocarbon having a boiling point within the range of from 10 to 40°C and an organic substance, other than a chlorofluorocarbon, having a boiling point within the range of from -45 to -10°C, in a ratio of from 3 to 7 parts by weight of the higher boiling component (serving primarily as a coolant) per part by weight of the lower boiling …
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 17, 1990 and granted September 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2012.
- 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.