Holder for clamping used microtome blade
CA 2057155 C · Owner: Kabushiki Kaisha Chiba Medikaru · Inventors: Chiba, Tutomu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A holder for reusing a used microtome blade in, which the front end portion of a holder body is cut through along a plane extending through the longitudinal axis of the holder body so as to form bifurcated half parts defining a slit for receiving a used microtome blade. An inclined through-bore is formed in the front front end portion, extending in the same plane so as to terminate the slit, one of the corners of the inserted end part of the microtome blade bears against the innermost part of the wall surface of the inclined throughbore and is clamped between the bifurcated half parts by a clamping means.
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 December 6, 1991 and granted February 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2013.
- 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.