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Canadian application, no grantCanada

Method for auto-calibration of a controllable damper suspension system

CA 2290470 A1 · Owner: Catanzarite, David M. · Inventors: Catanzarite, David M.; Holzheimer, John C.; Hamo, David J.

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

A method for automatically calibrating a controller (44) for a controllable damping system (40), for example, the suspension and damping system for a truck seat or cab, includes the steps of receiving an initiation signal that is checked against criteria to ensure that calibration is actually intended. The seat (20) or other body (ex. a vehicle cab) is then moved to a first limit position, where a sensor (50, 50') reads a position signal and to a second , limit position, where another position signal is read. Preferably a midpoint, or neutral position is calculated from the measured position signals and the , seat (20) or other body is moved to this neutral position. A range of …

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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 June 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 1998
GrantedNo grant recorded
Term endedJune 11, 2018
Patent numberCA 2290470 A1
Classification (IPC)G01D18/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 11, 1998Term endedJune 11, 2018

Sources & verification

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