Woodworking press
CA 2182748 C · Owner: Tarbell, Russell John · Inventors: Tarbell, Russell John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A woodworking press for effecting a mating of jointed boards. The instant invention is an elongated pressing/ jacking device which includes, at one end, an anchor piece at the other, end a reversible head for contact of a workpiece and a central turnbuckle structure connecting the anchor and the head. The anchor is adapted for nailing to a substrate and has a feature to enhance prying the anchor from the substrate. The turnbuckle device is conventional, but is enhanced by use of a transfixed shuttling handle. The head is unique in that it is designed having multiple edges which may be brought into mating contact with wood joint structures of varying morphology. Through use of a simple, yet …
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 August 6, 1996 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2018.
- 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.