Sharpener device
CA 1112877 A · Owner: Wiltshire Cutlery Company Proprietary Limited · Inventors: Jackson, Dennis B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for sharpening scissors and similar two bladed cutting implements in which both blades are sharpened simultaneously with the scissors kept in the closed condition. The apparatus includes a hollow housing containing a pair of blade sharpeners at least one of which is mounted for movement towards and away from the other and is spring influenced towards the other. The or each movable sharpener is carried at a front end of a elongate member which extends rearwardly into the housing and is movable about an axis located at or adjacent its rear end. Sharpening is effected by passing the closed scissors between the two sharpeners so that the cutting edge of each blade is …
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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
- Granted November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
- 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.