Web spreader roll
CA 2258987 A1 · Owner: Rajaniemi, Sauli · Inventors: Rajaniemi, Sauli
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a spreader roll (1) comprising a nonrotating, most advantageously bowed roll axle, (2) and a rotatingly in bearings on said roll axle mounted roll shell (3) that most advantageously is formed by a plurality of tubular roll segments (3a) connected to each other. According to the invention said roll shelf (3) is mounted on the roll axle (2) so that the inner race (5a) of the rolling bearing (5) is arranged to rotate with the roll shell (3).
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 February 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2021.
- 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.