Forming board for papermaking machine with adjustable blades
CA 2480948 A1 · Owner: Sherrill, Guy Bryan · Inventors: Sherrill, Guy Bryan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A forming board for a papermaking machine includes: a support; a transverselyextending lead blade attached to the support the lead blade; a plurality of , transversely-extending trailing blades; a mounting unit for each of the plurality of trailing blades, the mounting unit being attached to a respective trailing blade and to the support such that the upper surfaces of the lead blade and the trailing blades are substantially coplanar and such that gaps are defined between the trailing edges and leading edges of adjacent blades the gaps being of substantially uniform width; and a drive unit attached to the mounting unit and to the support, the drive unit being configured to drive the …
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 April 2, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 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.