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Official data from INPI

INIBIÇÃO DA FORMAÇÃO DE COQUE DURANTE VAPORIZAÇÃO DE HIDROCARBONETOS PESADOS

Em AnáliseInvention PatentPCT · US1989005183

Application data

Number

PI8907217

Type

Invention Patent

Filing

11/20/1989

Publication

03/05/1991

PCT

US1989005183

Progress at the INPI

  1. Filing11/20/89
  2. Publication03/05/91
  3. Examination10/06/92
  4. Allowance
  5. Grant
  6. In force

Published on 03/05/1991, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 08/06/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lummus Crest Inc.

US

Inventors

J. C. (pessoa física)

J. F. (pessoa física)

K. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

278.999 · 12/02/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/06/1996

RPI 1340

Solicitação de exame técnico

#4.1

10/06/1992

RPI 1140

Notificação de entrada na fase nacional - PCT

#1.3

03/05/1991

RPI 1057

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