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Expired Canadian patentCanada

Multi-protocol storage appliance that provides integrated support for file and block access protocols

CA 2495180 C · Owner: Pawlowski, Brian · Inventors: Pittman, Joseph C.; Pawlowski, Brian; Lee, Herman

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

A multi-protocol storage appliance serves file and block protocol access to information stored on storage devices in an integrated manner for both network attached storage (NAS) and storage area network (SAN) deployments. A storage operating system of the appliance implements a file system (320) that cooperates with novel virtualization modules to provide a virtualization system (300) that ~virtualizes~ the storage space provided by the devices. The file system provides volume management capabilities for use in block-based access to the information stored on the devices. The virtualization system (300) allows the file system to logically organize the information as named file …

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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 July 28, 2003 and granted April 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 28, 2003
GrantedApril 30, 2013
Term endedJuly 28, 2023
Patent numberCA 2495180 C
Classification (IPC)G06F17/30 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 28, 2003Patent grantedApril 30, 2013Term endedJuly 28, 2023

Sources & verification

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