Microtome knife-checking arrangement
CA 1190446 A · Owner: Reichert (C.) Optische Werke Ag · Inventors: Bilek, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for checking the quality of a knife in a microtome, in particular an ultramicrotome in which the, microtome has an observation microscope and a sublevellight source for illuminating a specimen/knife region the knife being carried by a knife holder which can be pivoted about an axis lying along the cutting edge of the knife, between a specimen-cutting position and a tilted position, in which the exposed surface of the cutting edge of the knife and the optical path of the sublevel light source define an included angle of at least 20°. The knife-holder can be locked in this tilted position.
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 July 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2002.
- 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.