Improvements in articulating lawn mowers
CA 2261671 A1 · Owner: Lastec, Inc. · Inventors: Laskowski, Jeffrey J.; Rich, Thomas M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mowing apparatus (1) with multiple articulating cutting decks (40-42) includes a pair of side cutting decks (41 42) attached to a center cutting , deck (40). The side decks (41 42) are pivotally attached to the center deck (40) and pivot about axes which lie in the planes defined by rotation of the respective cutting blades (80, 82, 84). The cutting blades are driven by pulleys and belts. Proper tension in each side drive belt (92) is maintained during pivoting of the corresponding side deck (41) by an assembly comprising a pair of idler pulleys (94, 96) rotatably mounted on a pivotally attached pulley arm (100) which is biased in the direction which increases tension on the belt …
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 July 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2019.
- 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.