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Expired Canadian patentCanada

Material mixing and compacting apparatus

CA 1082871 A · Owner: Nuclear Supreme · Inventors: Waltrip, Owen 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

Molten coke forming material is processed by infeed through sealing gates to an elongated housing within which it is mixed cooled and compacted, into a solid mass. When sufficiently hardened the compacted mass is expelled, from the housing. A gas may be injected into that zone of the housing within which the material undergoes mixing while in a molten state.

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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 August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 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 29, 1977
GrantedAugust 5, 1980
Term endedAugust 5, 1997
Patent numberCA 1082871 A
Classification (IPC)C10L5/00 +1 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedJune 29, 1977Patent grantedAug 5, 1980Term endedAug 5, 1997

Sources & verification

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