Shoe press belt
CA 2396607 C · Owner: Ichikawa Co. Ltd. · Inventors: Watanabe, Kazumasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus comprises a shoe press belt for use in a shoe press comprising a press roll and a shoe, the press having a nip zone and a non-nip zone the nip , zone , formed between the roll and the shoe the nip zone being narrower than the , shoe the shoe press belt having a body comprising a thin portion and a thick portion, the thin portion including a taper portion tapering from a point inward from a boundary formed between the nip zone and the non-nip zone the lower edge of , the taper portion being inward of or outward of the boundary between the nip zone and the non-nip zone. The features of the invention provide an improved apparatus with shoe press 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 31, 2002 and granted September 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2024.
- 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.