Patent Yard Sign in
Expired Canadian patentCanada

Solid-phase and solution-phase synthesis of glycosylphosphatidylinositol glycans

CA 2491555 C · Owner: Hewitt, Michael C. · Inventors: Snyder, Daniel; Seeberger, Peter H.; Hewitt, Michael C.

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

One aspect of the present invention relates to solution-phase approaches to GPI synthesis. Another aspect of the present invention relates to key building blocks, and syntheses thereof, useful for GPI assembly. Yet another aspect of the invention relates to an automated method for the synthesis of GPIs and fragments thereof.

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 July 10, 2003 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 10, 2003
GrantedSeptember 11, 2012
Term endedJuly 10, 2023
Patent numberCA 2491555 C
Classification (IPC)C07H3/06 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 10, 2003Patent grantedSep 11, 2012Term endedJuly 10, 2023

Sources & verification

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