Patent Yard Sign in
Expired Canadian patentCanada

Method and device for removing ova from animals

CA 1083902 A · Owner: Barnett, Gordon R. · Inventors: Barnett, Gordon R.

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 method and means for inserting fluid into a uterus of an animal is described. One or more inlet cannula lead into a uteral area and communicates with the exterior of the animal. Means for sealing off the uteral area is provided and one or more outlet cannula lead from the uteral area and communicate with the exterior of the animal. By this means, ova can be removed without the need for separate surgical operation. As described, the means for sealing off the uteral area consists of inflatable diaphragms.

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 August 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 1997.
  • 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 23, 1977
GrantedAugust 19, 1980
Term endedAugust 19, 1997
Patent numberCA 1083902 A
Classification (IPC)A01K21/00 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedSep 23, 1977Patent grantedAug 19, 1980Term endedAug 19, 1997

Sources & verification

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