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Expired Canadian patentCanada

Velocity change sensor with contact retainer

CA 2026922 C · Owner: Breed Automotive Technology, Inc. · Inventors: Husby, Harald S.; Thuen, Ted; Breed, Allen K.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An accelerometer for sensing velocity changes particularly suited for passenger restraint systems in a motor vehicle for the deployment of an air bag includes a housing with contact blades and a contacting element. The contacting element is arranged to move toward the contact blades when a deceleration exceeding a threshold level is sensed. A retaining element is provided to set the blades in a preselected position so that the blades are contacted by the contacting element simultaneously thereby improving the response time of the accelerometer.

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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 October 4, 1990 and granted August 20, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 4, 1990
GrantedAugust 20, 1996
Term endedOctober 4, 2010
Patent numberCA 2026922 C
Classification (IPC)G05B11/01 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedOct 4, 1990Patent grantedAug 20, 1996Term endedOct 4, 2010

Sources & verification

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