Patent Yard Sign in
Expired Canadian patentCanada

Hydrotreating of pyrolysis gasoline

CA 1097243 A · Owner: Lummus Company (The) · Inventors: Minkkinen, Ari A.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Case 3343, HYDROTREATING OF PYROLYSIS GASOLINE Abstract of the Disclosure, In the hydrotreating of pyrolysis gasoline recycle effluent is treated, to separate the more volatile components therefrom prior to recycle, to, thereby increase the hydrogen partial pressure of the hydrotreating. In the manner, total pressures can be reduced to correspond to the pressure of the available hydrogen gas, while retaining the kinetic benefits of increased partial pressures.

Read the whole patent

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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 10, 1978
GrantedMarch 10, 1981
Term endedMarch 10, 1998
Patent numberCA 1097243 A
Classification (IPC)C10G45/02 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedApril 10, 1978Patent grantedMarch 10, 1981Term endedMarch 10, 1998

Sources & verification

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