Patent Yard Sign in
Expired Canadian patentCanada

Method for assessing the fertility of male mammals and kit therefor

CA 1249501 A · Owner: Ax, Roy L. · Inventors: Lenz, Richard W.; Ax, Roy L.

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

Abstract of the Disclosure, A method for evaluating the fertility of a male mammal. A semen sample is obtained from the individual to be tested. The sperm is separated from the seminal plasma of the semen sample. At least one test portion and a control portion of the sperm are isolated. The sperm portions are incubated, the test portion being exposed to a glycosaminoglycan in a concentration effective to induce an acrosome reaction in sperm. A representative sample of incubated sperm from each portion is then counted by means of observation by light microscopy to measure the increase in acrosome reaction in the test portions as compared to the control portion. A kit is provided for the …

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

  • Granted January 31, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2006.
  • 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 13, 1985
GrantedJanuary 31, 1989
Term endedJanuary 31, 2006
Patent numberCA 1249501 A
Classification (IPC)C12Q1/02 +1 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedFeb 13, 1985Patent grantedJan 31, 1989Term endedJan 31, 2006

Sources & verification

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