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Expired Canadian patentCanada

A recording apparatus

CA 2009172 C · Owner: Moro, Shuuji · Inventors: Kiko, Masahiro; Hirai, Jun; Moro, Shuuji

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 tape recording apparatus is capable of operation in either a normal recording mode or a high band recording mode. Detecting holes to indicate whether a tape cassette loaded into the recording apparatus is designed for the normal recording mode or the high band recording mode are formed in the tape cassette. The kind of cassette is detected from the detecting holes and the, high band recording mode or the normal recording mode is automatically set in accordance with the kind of tape cassette detected. The automatic setting can be selectively cancelled, however, in which case the recording can be executed in the normal recording mode even if a tape cassette designed for the high band …

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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 2, 1990 and granted October 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 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.
FiledFebruary 2, 1990
GrantedOctober 12, 1999
Term endedFebruary 2, 2010
Patent numberCA 2009172 C
Classification (IPC)G11B5/02 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 2, 1990Patent grantedOct 12, 1999Term endedFeb 2, 2010

Sources & verification

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