Apparatus for depositing and staining cytological material on a microscope slide
CA 2105828 C · Owner: Fox, William Alan · Inventors: Knesel, Ernest Arthur, Jr.; Fox, William Alan; Carrico, Charles Leo, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for use in depositing and staining cytological material on a microscope slide. In order to ensure that the material deposited on a slide is isolated from the material deposited on other specimen slides the apparatus comprises a tube assembly (10 20, 16) and a base plate (26). The tube assembly (10 20, 16) includes: 1) an elongated hollow tube (10) having a top end and a bottom end; 2) a base member (20) located at the bottom end of the tube (10) and projecting outwardly from the tube (10) in a direction generally perpendicular to the longitudinal axis of the tube (10); and 3) a flange (16) outwardly-extending from the base member (20) in an direction generally perpendicular to …
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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 September 9, 1993 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2015.
- 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.