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Expired Canadian patentCanada

Device for adjusting and fixing detecting means relative to the index mark on a recording disc

CA 1138103 A · Owner: Basf Aktiengesellschaft · Inventors: Brotzler, Roland; Manzke, Klaus; Schulze-Berge, Klaus

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

O.Z. 0050/033611, ABSTRACT OF THE DISCLOSURE: A device provided on a, recording/reproducing apparatus for adjusting and fixing, a detecting means relative to the index mark on a recording disc, which device comprises a holding device for the detecting means, the position of which can be altered and which can be aligned and fixed relative to the index mark the holding device consisting of a slidably mounted member made of a suitable material and having at least one elongated hole, and of a spring which exerts a biassing force on the slidably mounted member which moves on an arcuate path.

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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 December 21, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 3, 1980
GrantedDecember 21, 1982
Term endedDecember 21, 1999
Patent numberCA 1138103 A
Classification (IPC)G11B23/00 +2 more

Timeline

Timeline From CIPO dates

1981198319851987198919911993199519971999Application filedJan 3, 1980Patent grantedDec 21, 1982Term endedDec 21, 1999

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