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Expired Canadian patentCanada

System and method for directly accessing long-term memory devices

CA 2135681 C · Owner: Makam, Srinivas V. · Inventors: Makam, Srinivas V.

CIPO record

Overview

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

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Abstract From the Canadian patent

An apparatus that retrieves data from a plurality of long-term memory devices and delivers the data to a packet network over a plurality of channels, wherein each of the channels has a specific bandwidth requirement. The apparatus, comprises a storage device adaptor which is connected to the long-term storage devices (such as disk systems, CD ROM, etc.). The adaptor reads data responsive to, a selected channel from a storage device to a location in a buffer memory. A network, interface reads data from the location in the buffer memory formats the data, and, sends the data to the packet network. A controller selects the channel in such a way, that all channels receive their required …

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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 November 14, 1994 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 1994
GrantedJanuary 18, 2000
Term endedNovember 14, 2014
Patent numberCA 2135681 C
Classification (IPC)H04L69/14

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 14, 1994Patent grantedJan 18, 2000Term endedNov 14, 2014

Sources & verification

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