Patent Yard Sign in
Expired Canadian patentCanada

Phosphorylating agent and process for the phosphorylation of organic hydroxyl compounds

CA 1202253 A · Owner: Unilever Plc · Inventors: Van Der Marel, Gijsbert A.; Van Boeckel, Constant A.A.; Van Boom, Jacobus H.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention relates to new phosphorylating agents a process for producing said compounds and their use in a process for the phosphorylation of organic hydroxyl compounds to obtain intermediate products useful for the production of polynucleotides. The phosphorylation is achieved without side reactions at the purine- or pyrimidine bases.

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 March 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 10, 1982
GrantedMarch 25, 1986
Term endedMarch 25, 2003
Patent numberCA 1202253 A
Classification (IPC)C07H21/02 +2 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedMay 10, 1982Patent grantedMarch 25, 1986Term endedMarch 25, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.