Apparatus for measuring properties of a moving paper web or cardboard web
CA 2321632 A1 · Owner: Moisio, Hannu · Inventors: Moisio, Hannu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an apparatus for measuring properties of a moving paper web or cardboard web. The apparatus comprises a sensor (1) and a counterpart. The sensor (1) comprises at least one coil (2 3). The sensor (1) , is arranged on a first side of the moving web (7) and the counterpart is arranged on a second side of the moving web (7). The coil (2 3) comprises a , plurality of layers, each layer constituting a part of the coil the layers , being superimposed and coupled in series to constitute the coil.
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 25, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.