Multi-use broad bladed knife
CA 2491798 A1 · Owner: Three Way Tool · Inventors: Stubbs, Shawn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-use broad bladed knife (100) is provided. The multi-use knife (100) includes a broad blade (110), such as commonly used to apply spackle to a wall or other surface. The broad blade (110) is attached to a handle (120) with a , striking surface (150) comprised of an appropriate hard material on the heel of the handle (120). Within the handle (120) are slideably extendable and retractable implements (130, 140), including a cutting edge (130) and a screwdriver implement (140). The cutting edge and screwdriver implement (130 140) may be extended through the heel of the handle through slits using buttons (132, 142). The screwdriver implement and cutting edge (130 140) may , lock …
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 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2025.
- 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.