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Canadian application, no grantCanada

Satellite control system

CA 2001853 A1 · Owner: Rosen, Harold A. · Inventors: Rosen, Harold 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 method for achieving satellite (24) attitude stabilization against the undesired influences of solar pressure or other attitude disturbances to be used with earth-orbiting satellites of the type employing two solar collection panels (30a), (30b) extending from the satellite body in generally opposite directions (36), (38). Synchronized simultaneous movement of both solar panels about their normal sun-tracking position causes desirable torques to be generated which have a cancelling influence on the undesired satellite movement caused by solar pressure or other attitude disturbances.

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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 November 2, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 2, 1989
GrantedNo grant recorded
Term endedNovember 2, 2009
Patent numberCA 2001853 A1
Classification (IPC)B64G1/00 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedNov 2, 1989Term endedNov 2, 2009

Sources & verification

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