Apparatus and method for making woodworking joints
CA 2286763 C · Owner: Hampton, R. Terry · Inventors: Hampton, R. Terry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dovetail joint jig (20) for guiding a power tool for creating a dovetail slot (104) in a first workpiece (92) and a dovetail pin (99) in a second workpiece (91) includes a body portion (31) having a slot portion (25) and a pin portion (26). The slot portion includes side projections (27 28) which , define a clearance space (29). A tapered router bit (102) is guided along the inner edge of the side projections to create a dovetail slot. The pin portion includes a slot-shaped portions (98) whose planar shape coincides with the shape of the slot to be created and coincides with the shape of the tapered router bit. A cylindrical router bit (96) is guided around the edge of the pin …
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 April 21, 1998 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 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.