Adjustable tyer
CA 2121409 C · Owner: 1217145 Ontario Inc. · Inventors: Parsons, Llewellyn Bertram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adjustable tyer is formed using no knots. A slide, possibly made of plastics material is provided. The slide has a pair of channels through it for rope. A bight of rope is formed at one end of the slide. Anchoring means are provided to anchor the rope so that it is fixed against sliding in at least one of the channels. When rope is fixed with respect to only one channel a slip noose is formed. When rope is fixed with respect to both channels a tyer of fixed length is provided. The anchoring means to fix rope in respect of the second channel is releasable for adjustment purposes.
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 15, 1994 and granted December 8, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2016.
- 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.