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Expired Canadian patentCanada

High performance extended interaction output circuit

CA 1310123 C · Owner: Litton Systems, Inc. · Inventors: Symons, Robert S.

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

There is provided a high performance extended interaction output circuit EIOC having two cavities (Figure 2). The EIOC of the present invention has an image impedance which is twice the magnitude of its output load resistance. The EIOC of the present invention also includes a three cavity EIOC (Figures 4 5, 6) which has two image impedances, the second image impedance being one half the magnitude of the first image impedance while the output load impedance of the three cavity EIOC is one third the magnitude of the first image impedance.

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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

  • Granted November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1989
GrantedNovember 10, 1992
Term endedNovember 10, 2009
Patent numberCA 1310123 C
Classification (IPC)H01J25/10 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMay 31, 1989Patent grantedNov 10, 1992Term endedNov 10, 2009

Sources & verification

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