Manufacture of flexible reinforced polymeric article
CA 1308640 C · Owner: Holroyd, Colin · Inventors: Perkins, David John Bridgewood; Holroyd, Colin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Manufacture of Flexible Reinforced Polymeric Article" In a method of and apparatus for the manufacture of a flexible reinforced polymeric article, such as a breaker fabric for a pneumatic tyre a layer (12) of polymeric material is fed from feed means to a conveyor and a pair of laying head carriages (47)(48) are arranged to lay to and fro over said polymeric layer two reinforcing cords (22)(23) in an arrangement in which two successive transverse portions of one cord lie interdigitated between two successive transverse portions of the other cord in a manner whereby the two cords are free from overlapping cross-over regions. Means may be provided for applying a second layer (13) of polymeric …
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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
- Granted October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 2009.
- 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.