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Expired Canadian patentCanada

Refrigerated storage or shipment of fresh produce in a modified gaseous atmosphere

CA 1086560 A · Owner: Transfresh Corporation · Inventors: Woodruff, Richard E.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Fresh fruits and vegetables are stored under refrigerated conditions for extended periods of time in a manner which prevents the growth of harmful fungi and, as well, the, environmental atmosphere is a chemical anti-oxidant. All of the above are achieved by maintaining the fresh produce in a storage container including an artificial atmosphere composed of carbon monoxide substantially in excess of 5% and preferably above about 10%, carbon dioxide, a significant amount of oxygen and, the remainder nitrogen. - 1 -

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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

  • Granted September 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 10, 1976
GrantedSeptember 30, 1980
Term endedSeptember 30, 1997
Patent numberCA 1086560 A
Classification (IPC)A23B7/04

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedJune 10, 1976Patent grantedSep 30, 1980Term endedSep 30, 1997

Sources & verification

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