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Expired Canadian patentCanada

Method and apparatus for receiving electromagnetic radiation within a frequency band

CA 2117797 C · Owner: Motorola Mobility, Inc. · Inventors: Kotzin, Michael D.; Schuler, Joseph

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

A method and apparatus are provided for receiving electromagnetic radiation within a frequency band. The receiving is accomplished by intercepting electromagnetic radiation within the frequency band and converting the intercepted electromagnetic radiation into an electrical signal (102). Subsequently, a portion of the electrical signal (102) is digitized (104) into digitized signals (112 113, 114). Each digitized, signal (112 113, 114) represents the intercepted electromagnetic radiation within a portion of the frequency band. Finally a composite, digitized signal (118) is generated (116) from at least two of the digitized signals (112, 113) 114). Alternatively the receiving process …

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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 7, 1994 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2016.
  • 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 7, 1994
GrantedAugust 24, 1999
Term endedFebruary 7, 2014
Patent numberCA 2117797 C
Classification (IPC)H04B1/18 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 7, 1994Patent grantedAug 24, 1999Term endedFeb 7, 2014

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