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Official data from INPI

PROCESSO E APARELHO PARA TRATAMENTO DE UM GÁS BRUTO.

PublicadaInvention Patent
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Application data

Number

PI8705530

Type

Invention Patent

Filing

10/16/1987

Publication

05/24/1988
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Progress at the INPI

Under appeal
  1. Filing10/16/87
  2. Publication05/24/88
  3. Examination10/30/90
  4. Refused10/26/93
  5. Grant
  6. In force

The application was refused by the INPI on 10/26/1993. The invention was never patented.

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Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Edward L. Bateman Limited

ZA

The Union Steel Corporation of South Africa Limited

ZA

Inventors

B. E. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

C01B 3/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

01/05/1988

RPI 898

Indeferimento

#9.2

10/26/1993

RPI 1195

Conhecimento de parecer técnico

#7.1

10/06/1992

RPI 1140

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

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