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Expired Canadian patentCanada

Tire building apparatus for large tires

CA 1056113 A · Owner: Goodyear Tire And Rubber Company (The) · Inventors: Mcevoy, Charles J.; Braden, William D.; Livgren Allen L.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A first stage radial ply carcass and an endless breaker belt are built conventionally about horizontal axes. Carcass and belt separately are upended, to axis-vertical positions. The respective mid-circumferential planes of the carcass and the belt are made coplanar and coincident about the vertical axis of a shaping and curing core without, fixed reference to the vertical axis. The core is raised, into and through the carcass and expanded first to support the carcass without significant radial deformation due to gravity, and then to expand the carcass to adhere the belt therearound. The assembly of core and belted carcass is then returned to horizontal …

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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 June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 12, 1979
Term endedJune 12, 1996
Patent numberCA 1056113 A
Classification (IPC)B29D30/08 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJune 12, 1979Term endedJune 12, 1996

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.