Patent Yard Sign in
Expired Canadian patentCanada

Reagent and method for analyzing cells in urine

CA 2068471 C · Owner: Sysmex Corporation · Inventors: Nakamoto, Hiroyuki; Fujiwara, Chiyose

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

A reagent for analyzing cells in urine and a method for analyzing cells in urine with the use of said reagent are provided. The present invention discloses a reagent for analyzing cells in urine which comprises solution(s) containing a fluorescent dye, an osmolarity compensating agent and a buffer, as well as a method for analyzing cells in urine which comprises diluting a urine sample and staining cells therein with said reagent irradiating said, cells with light in the violet or blue wavelength region by using a flow cytometer and measuring the forward or side scattered light and fluorescence from said cells.

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 May 12, 1992 and granted October 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2014.
  • 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 12, 1992
GrantedOctober 7, 2003
Term endedMay 12, 2012
Patent numberCA 2068471 C
Classification (IPC)G01N33/52 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 12, 1992Patent grantedOct 7, 2003Term endedMay 12, 2012

Sources & verification

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