Dicarboxylic acid oxidation products
CA 2029006 C · Owner: Detty, Michael R. · Inventors: Danielson, Susan J.; Detty, Michael R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
What is disclosed is a dicarboxylic acid oxidation product of an immunologically reactive mono- or a polysaccharide having vicinal diols and a process for their preparation. The disclosed compounds are useful as intermediates, in the preparation of novel ligand analogs for immunoassays.
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 30, 1990 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 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.