Method and apparatus for making a tread-belt assembly
CA 2408294 C · Owner: Risser, Philippe · Inventors: Risser, Philippe; Sorce, Francesco; Roedseth, John Kolbjoern
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for making a tread-belt assembly for a pneumatic tire using a supply ramp to supply green rubber tread stock for application on a substantially cylindrical green rubber belt package. The green tread stock is advanced, along the supply ramp toward the belt package. A final portion of the supply ramp is, positioned along a plane tangent to an outer circumference of the belt package. The, tread stock is applied to the outer circumference by moving a leading cut end of the, tread stock from the supply ramp to the belt package. The green rubber tread stock is, held from moving by inserting transfer pins downward into both edges of the green, rubber tread stock. The …
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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 October 15, 2002 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 15, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 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.