Patent Yard Sign in
Expired Canadian patentCanada

Virosome-like-particles

CA 2515392 C · Owner: Stegmann, Antonius Johannes Hendrikus · Inventors: Wilschut, Jan Christiaan; Schoen, Pieter Joseph; Stegmann, Antonius Johannes Hendrikus

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 the production of virosome-like-particles. The invention provides a method for producing a virosome-like-particle comprising contacting an enveloped virus with a solution containing a short-chain phospholipid allowing solubilisation of the viral envelope of said virus further comprising removing short-chain phospholipid from said solution allowing formation of a functionally reconstituted viral envelope.

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 February 11, 2004 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 11, 2004
GrantedJanuary 3, 2012
Term endedFebruary 11, 2024
Patent numberCA 2515392 C
Classification (IPC)C12N7/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedFeb 11, 2004Patent grantedJan 3, 2012Term endedFeb 11, 2024

Sources & verification

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