Incline wedge variable target size sawguides for circular gang saws
CA 2202852 C · Owner: Coe Newnes/Mcgehee Ulc · Inventors: Newnes, William R.; Michell, Steven W.; Sergeant, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device for selectively actuable positioning of sawguides for circular gang saws mounted on a saw arbor shaft comprises a first shaft such as a guide bar extending along a first axis generally parallel to the saw arbor shaft first and second sawguides slidably mounted on the first shaft for longitudinal sliding thereon on opposed sides of first and second wedges mounted in threaded engagement, in left and right hand threaded engagement respectively on a selectively, rotatable second shaft extending between the first and second sawguides along a second axis generally perpendicular to the first axis threadably journalled in the first and second wedges and rotatably centered and anchored …
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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 16, 1997 and granted July 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.