Detection of endotoxin in pharmaceutical preparations by mass spectrometry
CA 2032133 A1 · Owner: Majde, Jeannine A. · Inventors: Cowens, J. Wayne; Majde, Jeannine A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of detection of endotoxin in polypeptide compositions. In particular this invention, contemplates a method for measuring endotoxin by quantitating the amount of a volatile derivatized component of endotoxin beta-hydroxymyristic acid, present in polypeptide compositions. The present invention can be used for testing the endotoxin content of products which are intended for use in clinical medicine including, those produced by recombinant DNA technology.
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 3, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 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.