Radial tire having a wrapped body ply with two rows of reinforcement cords
CA 2440417 A1 · Owner: Abdallah, David G. Jr. · Inventors: Abdallah, David G. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A body ply (12) comprising an elastomeric sheet (30) and a plurality of rows of reinforcement cords (32) embedded therein. The plurality of rows can comprise two parallel rows (32a, 32b) of reinforcement cords and the reinforcement cords in one row can be transversely staggered relative to the reinforcement cords in an adjacent row. To make the body ply (12) the , reinforcement cords (32) are introduced into a die assembly (44) and rubber is extruded around and between the reinforcement cords. Existing equipment namely an extrusion apparatus (40) conventionally used to manufacture steel belts or single layer body ply material can be used to make the body ply , material by providing an …
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 March 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 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.