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Expired Canadian patentCanada

Ledged magnetic disk storage case

CA 1182405 A · Owner: Egly, Robert A. · Inventors: Egly, Robert A.; Sullivan, Patrick

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

The following specification discloses a magnetic disk storage case that can be used for such disks as well as, other magnetic memory materials common to computers and word processing. The storage case is formed from a single molded piece of plastic, such as polypropylene in the form of a clamshell or book-like case, having a top and bottom cover. The top cover receives a support ledge having flexible barriers thereon to maintain the magnetic materials stored therebehind on the ledge. The bottom of the case receives the ledge and the magnetic disks therein within a surrounding wall. The entire top cover with the ledge and the disks therein can be accessed by means of a resilient living hinge …

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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 February 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2002.
  • 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 20, 1982
GrantedFebruary 12, 1985
Term endedFebruary 12, 2002
Patent numberCA 1182405 A
Classification (IPC)B65D43/16 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 20, 1982Patent grantedFeb 12, 1985Term endedFeb 12, 2002

Sources & verification

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