Patent Yard Sign in
Expired Canadian patentCanada

Packaging of fresh roasted coffee exhibiting improved aroma retention

CA 1315740 C · Owner: The Procter & Gamble Company · Inventors: Dirksing, Robert Stanley; Hargraves, Peter James; Merz, Theodore Paul

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

Packaging for coffee which is to be packed as quickly as is feasible after roasting, i.e. without undergoing substantial off gassing. The packaging preferably comprises a semi-rigid substantially gas-impervious container capable of withstanding the pressures generated by the release of carbon dioxide and other gases from the fresh roasted coffee in the container. The semi-rigid container is preferably comprised of plastic and predetermined portions of the container are preferably capable of undergoing limited deformation. This prevents instability of the base of the container thereby keeping its vertical axis erect and ensures that the, container does not become jammed within the shipping …

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

  • Granted April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
  • 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 6, 1989
GrantedApril 6, 1993
Term endedApril 6, 2010
Patent numberCA 1315740 C
Classification (IPC)A23F5/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJuly 6, 1989Patent grantedApril 6, 1993Term endedApril 6, 2010

Sources & verification

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