Patent Yard Sign in
Expired Canadian patentCanada

System and method for a hybrid clock and proxy auction

CA 2544785 C · Owner: Cramton, Peter C. · Inventors: Ausubel, Lawrence M.; Cramton, Peter C.; Milgrom, Paul R.

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

The present invention is a system and method for a computer-implemented auction wherein a hybrid auction combining elements of a clock auction and a proxy auction. In particular, if the earlier phase (104) is a clock auction and the later phase (108) is a proxy auction then the resulting hybrid , auction will combine the transparency and the simplicity of the clock auction with the efficiency outcome and competitive revenues of the proxy auction. The system includes receiving bids (118), determining an outcome (134) and outputting the results (136).

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 November 8, 2004 and granted July 20, 2021. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2024.
  • 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.
FiledNovember 8, 2004
GrantedJuly 20, 2021
Term endedNovember 8, 2024
Patent numberCA 2544785 C
Classification (IPC)G06Q30/08

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 8, 2004Patent grantedJuly 20, 2021Term endedNov 8, 2024

Sources & verification

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