Metal fibres and a machine for their manufacture
CA 2029535 A1 · Owner: Jones, John A. · Inventors: Jones, John A.; Jones, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a machine for manufacturing metal fibres. The machine has a power driven rotatable toothed wheel cutter having a width at least equal to the length of fibre required. The teeth being parallel to the axis of the cutter and there is provided a cutter bed block extending substantially radially from the cutter wheel and a feed mechanism for feeding strip metal of a thickness of the required fibre along the cutter bed block into the path of rotation of the cutter teeth at a speed commensurate with the speed of rotation of the wheel and the width of the fibre required.
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 November 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2012.
- 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.