Patent Yard Sign in
Expired Canadian patentCanada

Disk cartridge and adapter

CA 2384666 C · Owner: Nakata, Kuniko · Inventors: Goto, Yoshikazu; Nishino, Yukio; Ueno. Shigeto

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Disk cartridge having a case body with an opening for ejecting the disk and a disk storage portion. The cartridge includes a cover having a pair of finger-like disk holding members that maintain the disk and means to adjust the position of the disk along the axis thereof. The cover is accommodated in the disk storage portion and may be withdrawn at which time the pair of disk holding members hold the disk in a correct orientation.

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 December 15, 1998 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 15, 1998
GrantedAugust 19, 2003
Term endedDecember 15, 2018
Patent numberCA 2384666 C
Classification (IPC)G11B23/03 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedDec 15, 1998Patent grantedAug 19, 2003Term endedDec 15, 2018

Sources & verification

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