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Official data from INPI

PROCESSO PARA REMOÇÃO DE COMPOSTO DE ENXOFRE DO GÁS DE EXAUSTÃO DE UMA UNIDADE DE RECUPEAÇÃO DE ENXOFRE

Em AnáliseInvention Patent

Application data

Number

PI8501342

Type

Invention Patent

Filing

03/25/1985

Publication

11/19/1985

Progress at the INPI

Under appeal
  1. Filing03/25/85
  2. Publication11/19/85
  3. Examination11/10/87
  4. Refused07/09/91
  5. Grant
  6. In force

The application was refused by the INPI on 07/09/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

R. S. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8407843 · 03/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

03/08/1988

RPI 907

Solicitação de exame técnico

#4.1

11/10/1987

RPI 890

Publicação do pedido de patente

#3.1

11/19/1985

RPI 787

Pedido de patente depositado

#2.1

06/11/1985

RPI 764

Indeferimento

#9.2

07/09/1991

RPI 1075

Conhecimento de parecer técnico

#7.1

11/27/1990

RPI 1043

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