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Official data from INPI

PROCESSO PARA IMPEDIR A CORROSÃO DE METAIS, PROCESSO PARA REMOVER GASES ÁCIDOS DE UMA CORRENTE GASOSA E SOLUÇÃO AQUOSA DE LAVAGEM DE GÁS ÁCIDO.

IndeferidaInvention Patent

Application data

Number

PI8303746

Type

Invention Patent

Filing

07/13/1983

Publication

02/21/1984

Progress at the INPI

Under appeal
  1. Filing07/13/83
  2. Publication02/21/84
  3. Examination02/18/86
  4. Refused05/09/89
  5. Grant
  6. In force

The application was refused by the INPI on 05/09/1989. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

See this company's full portfolio

Inventors

F. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

398.077 · 07/14/1982

US

503.061 · 06/10/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/09/1989

RPI 968

Conhecimento de parecer técnico

#7.1

08/09/1988

RPI 929

6.2

03/04/1987

RPI 854

Pedido de certificado de adição de invenção

#5.1

05/06/1986

RPI 811

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

02/21/1984

RPI 696

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

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