Papermaking fabric, process for producing high bulk products and the products produced thereby
CA 2218156 A1 · Owner: Asten, Inc. · Inventors: Wright, Walter P.; Guyla, Thomas G.; Ahrens, Frederick W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention generally provides a broken twill through-air drying (TAD) fabric for use in the formation of a paper web. The present invention more particularly provides a 7,3 broken twill TAD fabric which is potentially useful in forming large areas of high bulk and absorbency in the resulting paper product.
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 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 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.