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Expired Canadian patentCanada

Steam producing process and products

CA 1303818 C · Owner: Misra, Chanakya · Inventors: Misra, Chanakya; Sucech, Steven William

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

In a process utilizing steam the method of producing, at least a portion of said steam including heating a, water-containing, solid substance for generating steam and capturing the generated steam for said process. A suitable solid substance is Al(OH)3. New alumina products are obtained.

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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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
  • 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 13, 1984
GrantedJune 23, 1992
Term endedJune 23, 2009
Patent numberCA 1303818 C
Classification (IPC)F22B3/00 +2 more

Timeline

Timeline From CIPO dates

198519881991199419972000200320062009Application filedJune 13, 1984Patent grantedJune 23, 1992Term endedJune 23, 2009

Sources & verification

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