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Canadian application, no grantCanada

Towed body yaw angle sensor

CA 2298389 A1 · Owner: L-3 Communications Corporation · Inventors: Teeter, Michael A.

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

A towed body yaw angle sensor arrangement used to sense the angle between the axis, of a tow fish and the flow of water. The water flow vector is used as the reference for, correcting towed body yaw so that a magnetic compass in the towed body is aligned, with the towed arrays streaming in the water flow. A yaw angle in the towed body, with respect to the flow will cause errors for target bearing and skew the arrays, relative to each other which will also cause errors. The flow sensor must be in the free, flow off the towed body and ideally the sensing part is aligned with water current flow. Also provided is a method for sensing and correcting a yaw angle.

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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 February 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 2000
GrantedNo grant recorded
Term endedFebruary 14, 2020
Patent numberCA 2298389 A1
Classification (IPC)B63B39/00 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedFeb 14, 2000Term endedFeb 14, 2020

Sources & verification

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