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Expired Canadian patentCanada

Collection of atomized metal particles

CA 1190010 A · Owner: Aluminum Company Of America · Inventors: Kapustay, John B.; Barch, Daniel R.; Sartschev, Adam J.

CIPO record

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

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Abstract From the Canadian patent

An improved apparatus for the production of particulate metal comprising a containment vessel having a sidewall and an endwall, a source of metal external to the vessel, nozzle means carried by the endwall and providing communication between the vessel and the external source of metal, gas ingress port spaced from the end wall and an exit port, means provided downstream of the vessel for collecting the metal particles swept from the vessel, and aspirating means for drawing collecting gases into the vessel through the ingress port and for carrying the particulate metal from the vessel to the collecting means.

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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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 9, 1983
GrantedJuly 9, 1985
Term endedJuly 9, 2002
Patent numberCA 1190010 A
Classification (IPC)B22F9/08

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedSep 9, 1983Patent grantedJuly 9, 1985Term endedJuly 9, 2002

Sources & verification

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