Video attachment to a microscope
CA 2135357 A1 · Owner: Widmer, Hansruedi · Inventors: Stucki, Jurg; Widmer, Hansruedi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The video attachment is an apparatus to be mounted laterally on a microscope and which is independent of the optic of this microscope. The apparatus comprises an imaging lens system and a video camera. The light beam path in the apparatus is deflected in such a manner that the video camera does not impede the use of the microscope. The video attachment is preferably used with a microcope of a slit lamp for the disgnosis of the eye.
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 November 8, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.