Compact, light weight, rugged tree falling head
CA 2004795 A1 · Owner: Isley, Reggald Emory · Inventors: Isley, Reggald Emory
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A tree falling head having a mast with front rear, left and right sides. A girdle encircles the mast and is pivotally connected to a central portion of the mast. A tree grappling means is coupled to and protrudes through the girdle. A tilt means is coupled between the mast and the girdle for tilting the girdle and the tree grappling means towards the mast's left or right sides respectively.
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 December 6, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2011.
- 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.