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Official data from INPI

PROCESSO PARA TRATAR UMA CARGA DE ÓLEO HIDROCARBONÁCEO PESADO E PROCESSO PARA REDUZIR A QUANTIDADE DE PRODUÇÃO DE COQUE NA COQUEIFICAÇÃO DA REFERIDA CARGA

Em AnáliseInvention Patent
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Application data

Number

PI8501214

Type

Invention Patent

Filing

03/19/1985

Publication

11/12/1985
View on INPI

Progress at the INPI

Under appeal
  1. Filing03/19/85
  2. Publication11/12/85
  3. Examination12/22/87
  4. Refused09/13/94
  5. Grant
  6. In force

The application was refused by the INPI on 09/13/1994. The invention was never patented.

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Latest action published by the INPI: 04/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alberta Oil Sands Technology and Research Authority

CA

Gulf Canada Limited

Inventors

F. S. (pessoa física)

CA

H. W. (pessoa física)

K. D. (pessoa física)

Technical data

IPC Classification

C10B 57/02

Priority claims

CA

450,003-2 · 03/20/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

04/19/1988

RPI 913

Solicitação de exame técnico

#4.1

12/22/1987

RPI 896

14.1

10/06/1987

RPI 885

14.7

10/06/1987

RPI 885

Publicação do pedido de patente

#3.1

11/12/1985

RPI 786

Pedido de patente depositado

#2.1

06/11/1985

RPI 764

Indeferimento

#9.2

09/13/1994

RPI 1241

14.1

08/17/1993

RPI 1185

Conhecimento de parecer técnico

#7.1

04/02/1991

RPI 1061

14.4

03/01/1990

RPI 1007

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