Patent Yard Sign in
Expired Canadian patentCanada

Centrifuge with removable core for scalable centrifugation

CA 2821623 C · Owner: Alfa Wassermann, Inc. · Inventors: Merino, Sandra Patricia; Otten, Robin Roy Louis Rudy; Dalessio, Steven J.

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

In one aspect, the application includes the steps of operating a centrifuge apparatus at certain predetermined parameters depending upon a product to be separated rotating a first rotor assembly having a first residence length in the centrifuge apparatus passing the product through the first rotor assembly during rotation thereof to achieve a first particle separation of the product substituting the first rotor assembly in the centrifuge apparatus with a second rotor assembly having a second residence length and rotating the second rotor assembly within the centrifuge apparatus passing the product through the second rotor assembly during rotation thereof to achieve a second particle …

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 November 25, 2002 and granted March 17, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 25, 2002
GrantedMarch 17, 2015
Term endedNovember 25, 2022
Patent numberCA 2821623 C
Classification (IPC)B04B1/06 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 25, 2002Patent grantedMarch 17, 2015Term endedNov 25, 2022

Sources & verification

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