Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for detecting immunologic reactions by diffusion in gel

CA 1049401 A · Owner: General Electric Company · Inventors: Giaever, Ivar

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 thin layer of gel on a metallized solid surface has two or more wells formed through the gel which are subsequently filled with specimens of first and second solutions suspected of respectively containing first and second immunologically reactive biological particles specific to each other. The specimens are allowed to diffuse in the gel, and presence of the first and second biological particles in the solutions forms a complexed protein precipitate line on the metallized solid surface corresponding to the region of intersection of the two diffused specimens and which is visible with good contrast to the unaided eye without the need for staining the gel and …

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 February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 27, 1979
Term endedFebruary 27, 1996
Patent numberCA 1049401 A
Classification (IPC)C12Q1/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedFeb 27, 1979Term endedFeb 27, 1996

Sources & verification

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