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Canadian application, no grantCanada

Imaging lidar system

CA 2021449 A1 · Owner: Kaman Aerospace Corporation · Inventors: Elkins, William P.; Ulich, Bobby L.; Calmes, Lonnie 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

Abstract of the Invention: A novel timing control method is utilized in conjunction with an imaging lidar system of the type disclosed in U.S. Patent 4,862,257. This novel timing control is employed in applications wherein the lidar system is mounted on an airborne platform. The timing control method of this invention completely eliminates the glint detector with associated signal conditioner used in the system of U.S. Patent 4,862,257, and instead relies, upon a signal derived from the aircraft altimeter to continually provide platform altitude status. Since the entire system is under the control of a computer the, altimeter signal can be interpreted and used to adjust total delay so as 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 July 18, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 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.
FiledJuly 18, 1990
GrantedNo grant recorded
Term endedJuly 18, 2010
Patent numberCA 2021449 A1
Classification (IPC)G01S7/48 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJuly 18, 1990Term endedJuly 18, 2010

Sources & verification

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