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Expired Canadian patentCanada

High-yield roasted coffee with balanced flavor

CA 2105018 C · Owner: Leppla, Jeffrey K. · Inventors: Kirkpatrick, Steven J.; Leppla, Jeffrey K.; Jensen, Mary R.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Green coffee beans are dried prior to roasting to a moisture content of from 0.5 to 7%. The drying is conducted at from 70° to 325°F (21° to 163°C) for from 1 minute to 24 hours. The dried green beans are fast roasted to a Hunter L-color of from 10-16. The dried roasted beans are blended with non-dried coffee beans roasted to a Hunter L-color of from 17-24 and having a moisture content before roasting of greater than about 7%. The blend contains from 1-50% of the dried dark roasted beans and from 50-99% of the non-dried roasted beans. The blend has a surprisingly high yield.

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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

  • Filed August 27, 1993 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 27, 1993
GrantedJune 23, 1998
Term endedAugust 27, 2013
Patent numberCA 2105018 C
Classification (IPC)A23F5/04 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedAug 27, 1993Patent grantedJune 23, 1998Term endedAug 27, 2013

Sources & verification

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