Patent Yard Sign in
Expired Canadian patentCanada

Improved distributed kernel operating system

CA 2547880 C · Owner: Qnx Software Systems Gmbh & Co. Kg · Inventors: Boyd, Andrew

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

An improved distributed operating system over a network of computer systems is described. Existing distributed operating systems have transmission performance limitations dictated by their inability to (1) reliably handle transient communication failures and rapid node reboots (2) provide a transmission protocol that adapts to link reliability and (3) allow transmissions to occur over an arbitrary combinations of communication links. The systems and methods described herein solve these problems by providing a reliable node- to-node session protocol that offers high performance message delivery and multi- interface management and support. This is done by transmitting all data between two …

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 May 24, 2006 and granted October 25, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 24, 2006
GrantedOctober 25, 2016
Term endedMay 24, 2026
Patent numberCA 2547880 C
Classification (IPC)H04L67/14 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 24, 2006Patent grantedOct 25, 2016Term endedMay 24, 2026

Sources & verification

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