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Expired Canadian patentCanada

Actuator for a brake system and method of making a brake actuator

CA 2552775 C · Owner: Bendix Commercial Vehicle Systems, Llc · Inventors: Plantan, Ronald S.; Scheckelhoff, Kenneth E.

CIPO record

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

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Abstract From the Canadian patent

In an actuator for a brake system or a method for making a brake actuator an attachment mechanism for attaching a diaphragm to a piston includes a plurality of protrusions on one of the piston and diaphragm and a plurality of cavities on the other of the piston and diaphragm each protrusion being insertable into a corresponding cavity to attach the diaphragm to the piston. Alternatively a retaining ring is provided that need not be precisely made and yet can attach the diaphragm to the piston securely and sealingly.

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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 July 20, 2006 and granted September 30, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 20, 2006
GrantedSeptember 30, 2014
Term endedJuly 20, 2026
Patent numberCA 2552775 C
Classification (IPC)B60T13/26 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 20, 2006Patent grantedSep 30, 2014Term endedJuly 20, 2026

Sources & verification

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