Patent Yard Sign in
Expired Canadian patentCanada

High bias gel tube and process for making tube

CA 2775855 C · Owner: Becton, Dickinson And Company · Inventors: Bradshaw, Allen; Manoussakis, Dimitrios; Martin, Paul

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

An improved fluid collection container contraining a gel separation medium is provided. The gel is disposed in the tube in a manner and geometry that is readily manufacturable and which overcomes potential gel movement issues.

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 September 19, 2003 and granted January 27, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.
FiledSeptember 19, 2003
GrantedJanuary 27, 2015
Term endedSeptember 19, 2023
Patent numberCA 2775855 C
Classification (IPC)B01L3/14 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 19, 2003Patent grantedJan 27, 2015Term endedSep 19, 2023

Sources & verification

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