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Expired Canadian patentCanada

Compact disk receiving device

CA 2340497 C · Owner: Kang, Shih-Chang · Inventors: Lin, Cheng-Chien; Kang, Shih-Chang

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 compact disk receiving device includes a cover (20) pivotably connected to a base (50) with a support plate (50) located therebetween. A shaft (40) is rotatably engaged between two first lugs (23) extending from a side of the cover. The shaft has a first hook member (42) and the support plate has a second hook member (52) which is engageable with the first hook member so that the support plate is able to be slid between the cover and the base. An opposite side of the side having the first hook member is an open side (44) so that two shafts can be piled up by inserting the first hook member of one shaft into the open side of the other shaft.

Read the whole patent

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 March 13, 2001 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 13, 2001
GrantedOctober 21, 2003
Term endedMarch 13, 2021
Patent numberCA 2340497 C
Classification (IPC)G11B33/02 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedMarch 13, 2001Patent grantedOct 21, 2003Term endedMarch 13, 2021

Sources & verification

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