Cyclophosphamide - alanine lyophilizates
CA 2013474 C · Owner: Hutt, Julie A. · Inventors: Hutt, Julie A.; Palepu, Nageswara R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stable rapidly dissolving lyophilized composition of cyclophosphamide and alanine is provided which contains an amount of water which ranges from approximately 0 parts to about 10 parts per 100 parts of cyclophosphamide; the composition is preferably prepared from a solution containing at least 1.7% (W/V) weight of alanine and having a pH in the range of 5 to 7. The composition is particularly characterized by not requiring rehydration prior to storage.
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 30, 1990 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.