Non-radioactive biological probes
CA 1249975 A · Owner: Biotechnology Research Enterprises S.A. Pty. Ltd. · Inventors: Symons, Robert H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound of the formula I: wherein B is an -NH-group linking the group C to the benzene ring which may or may not be in the para position relative to the azide group; C is an hydrocarbyl amine moiety including at least five carbon atoms; D is a ligand or hapten; and R1 to R4, which may be the same or different, are selected from H, alkyl of 1 to 5 carbon atoms, NO2, halide group, carboxylic acid group or amino group, and acid addition salts thereof. The compounds may be used as intermediates in the preparation of non-radioactive biological probes. - 1 -
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
- Granted February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
- 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.