Vegetation cutters
CA 2068192 A1 · Owner: Webster, Craig D. · Inventors: Webster, Craig D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for cutting vegetation comprises a housing rotatable about an axis;, a rotatable spool within the housing storing a supply of flexible line having an end extending through an aperture in the housing into a cutting plane normal to said axis and a manual feed system for said flexible line. The feed system comprises means for manually actuating rotation of the spool relative to the housing in the reverse direction to the driving direction. The manual feed system is preferably provided as a manual override for an automatic line feed system.
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 May 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2014.
- 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.