Lopper
CA 2439746 A1 · Owner: Linden, Olavi Erkki · Inventors: Linden, Olavi Erkki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A topper used to perform lopping, pruning and similar operations includes a lopping head having a spring-biased blade cooperating with a jaw, a drive mechanism connected to the lopping head and an elongate housing connected to the drive mechanism. The drive mechanism includes a first and a second mating portion selectively rotatable with respect to one another about an axis permitting positioning of the lopping head relative to the elongate housing, a first wheel rotatable about the axis a, second wheel rotatable about the axis and coupled to the blade by a head line, and a driving line arrangement comprising a driving fine arranged to rotate the second wheel and the first wheel together …
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 August 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 2025.
- 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.