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Expired Canadian patentCanada

Towed vehicle braking system

CA 2215445 C · Owner: Decker, Daniel L. Jr. · Inventors: Decker, Daniel L. Sr.; Decker, Daniel L. Jr.

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

Towed vehicle braking systems which are flexible enough for use by rental agencies and provide good safety features use a compressor (15) to drive a fluid actuator (12) with a piston (11). The piston is attached to the towed vehicle's brake actuator (30) e.g. a brake pedal or hand grip. The braking system case is positioned within the towed vehicle by a positioning mechanism (32) e.g. a scissors jack. The braking system is actuated by one or more of (a) a towed vehicle velocity decrease sensor (46 and 47) (46 and 52); (b) a separation of the towed vehicle and the towing vehicle sensor (63 and 64) and (c) coded signals from a transmitter (66) e.g. radio frequency, used by the driver to …

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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 September 15, 1997 and granted March 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 15, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 15, 1997
GrantedMarch 26, 2002
Term endedSeptember 15, 2017
Patent numberCA 2215445 C
Classification (IPC)B60T7/20

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedSep 15, 1997Patent grantedMarch 26, 2002Term endedSep 15, 2017

Sources & verification

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