Patent Yard Sign in
Expired Canadian patentCanada

Drop from front of buffer policy in feedback networks

CA 2215934 C · Owner: Ott, Teunis Jan · Inventors: Ott, Teunis Jan; Lakshman, Tirunell Viswanathan; Neidhardt, Arnold Leslie

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

A method for transmitting packets or cells (or both) in a communications network (10) is disclosed. The packets or cells are transmitted along a forward communications path in a network from a source node (h1) via one or more intermediary nodes (r1 x1, r6 and r2) to, a destination node (h4). At the intermediary nodes (r1 x1, r5 or r2), the packets or cells are received in a buffer (38 or 42-1 to 42-4). The packets or cells are transmitted along the forward communications path according to a communications schedule. In the presence of congestion at one of the intermediary nodes (x1) an indication of the congestion (302-342) is provided to the destination nodes (h4) of the first packets to be …

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 March 5, 1996 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 5, 1996
GrantedDecember 17, 2002
Term endedMarch 5, 2016
Patent numberCA 2215934 C
Classification (IPC)H04L47/10 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMarch 5, 1996Patent grantedDec 17, 2002Term endedMarch 5, 2016

Sources & verification

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