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Expired Canadian patentCanada

Space-based power system

CA 2507237 C · Owner: Spirnak, Gary T. · Inventors: Spirnak, Gary T.; Rogers, James E.

CIPO record

Overview

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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 space-based power system. The system maintains proper positioning and alignment of system components without using connecting structures. Power system elements are launched into orbit and the free-floating power system , elements are maintained in proper relative alignment e.g. position, orientation, and shape, using a control system (13).

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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 26, 2003 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2025.
  • 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 26, 2003
GrantedApril 15, 2014
Term endedNovember 26, 2023
Patent numberCA 2507237 C
Classification (IPC)H02S10/40 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 26, 2003Patent grantedApril 15, 2014Term endedNov 26, 2023

Sources & verification

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