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Expired Canadian patentCanada

Conversions of low molecular weight hydrocarbons to higher molecular weight hydrocarbons using a metal- containing catalyst

CA 1236123 A · Owner: Chevron Research And Technology Company · Inventors: Ryason, P. Raymond; Devries, Louis

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

Disclosed is a catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons. More particularly dis-, closed is a catalytic process for the conversion of methane to C2+ hydrocarbons, particularly hydrocarbons rich in ethylene or benzene, or both. The process utilizes a metal-containing catalyst, high reaction temperature of greater than 1000°C, and a high gas hourly space velocity of greater than 3200 hr-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 May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 29, 1984
GrantedMay 3, 1988
Term endedMay 3, 2005
Patent numberCA 1236123 A
Classification (IPC)C07C11/04 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedOct 29, 1984Patent grantedMay 3, 1988Term endedMay 3, 2005

Sources & verification

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