Seam design for a dryer fabric
CA 2260865 C · Owner: Josef, Michael J. · Inventors: Josef, Michael J.; Whitlock, Sharon K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A papermaker's fabric (10) having a smooth surface and a prolonged life includes flat machine-direction yarns (26 28) which define the upper and , lower surfaces thereof. The fabric has two layers of cross-machine direction yarns (18, 18', 22, 22'), each of which is interwoven with the flat machine direction yarns (26, 28). Other machine direction yarns (24) of round cross , section, weave with the cross-machine direction yarns (18' 22') in the two , layers to bind them together. At one of the two ends of the fabric seaming , loops (30) are formed by the round machine-direction yarns. At the other of the two ends, seaming loops (34) are formed by the flat machine-direction yarns (26, …
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 December 12, 1997 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 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.