Blade construction for a cutting machine
CA 2294498 C · Owner: Haapasalo, Pauli · Inventors: Haapasalo, Pauli
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a blade construction for a cutting machine which , comprises a blade body (6) and a blade section (1) which can be attached to , it and in which there is a body section (2) and a cutting section (3). In the body section (2), there are grooves (4) alternating on each side of the body section. In the blade body (6), there are openings (8) the distance between , which corresponds to the distance of the grooveless sections (5) of the body section (2) and the width of which corresponds to the width of the grooveless sections (5).
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 July 1, 1997 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 1, 2019.
- 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.