Patent Yard Sign in
Expired Canadian patentCanada

Adapter for microscope

CA 2015228 C · Owner: Yale University · Inventors: Rathbone, Richard Rodion; Wardlaw, Stephen Clark

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

The present invention concerns an adapter to be coupled to an objective lens of a microscope comprising a body member having a first coupling means at one end thereof to receive an objective lens of a microscope and having a second coupling means at the other end thereof to receive a microscope component. The body member has an axial light path running longitudinally therethrough and has a radial light path which intersects the axial light path. A source of light is disposed in the radial light path. A first filter is disposed in the radial light path downstream of the source of light for passing light at wavelengths which excite fluorescence in a specimen to be examined in a microscope 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

  • Filed April 24, 1990 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 24, 1990
GrantedJanuary 25, 2000
Term endedApril 24, 2010
Patent numberCA 2015228 C
Classification (IPC)G02B17/08 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 24, 1990Patent grantedJan 25, 2000Term endedApril 24, 2010

Sources & verification

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