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Expired Canadian patentCanada

Service discovery and publication

CA 2782812 C · Owner: Microsoft Corporation · Inventors: Buerk, Lawrence A.; Mills, Angela; Hasha, Richard L.

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

A system and methods for service discovery and publication are disclosed. Application programs write requests for service discovery publication, and subscription to a service discovery application programming interface. The service discovery application programming interface invokes one or more lower- level protocols to satisfy the discovery publication and/or subscription request. Service information retrieved from lower-layer protocols is formatted into a consistent data model and returned to the client application. In addition service information may be stored in a persistent data store managed by a discovery persistence service communicatively connected to the service discovery API.

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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 21, 2004 and granted September 8, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2026.
  • 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 21, 2004
GrantedSeptember 8, 2015
Term endedJuly 21, 2024
Patent numberCA 2782812 C
Classification (IPC)H04L12/16

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 21, 2004Patent grantedSep 8, 2015Term endedJuly 21, 2024

Sources & verification

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