Rotary cutter
CA 2246898 C · Owner: Kai R&D Center Co. Ltd. · Inventors: Takeshita, Takahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary cutter has a handle, a rotary blade having a cutting edge, a protective member for covering the blade a, lock mechanism for locking the protective member and a brake, mechanism for applying rotational resistance to the blade. The blade is rotatably supported by the handle. The protective member moves between a first position in which, the protective member is held to prevent exposure of the cutting edge of the blade, and a second position in which, the protective member permits exposure of the edge of the blade. The lock mechanism moves between a lock position in, which the protective member is positioned in the first position, and an unlock position, in which the protective member …
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 September 9, 1998 and granted July 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2020.
- 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.