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Official data from INPI

REPROCESSAMENTO DE RESIDUOS ACIDOS RESULTANTES DA PRODUÇÃO DE OLEOS MINERAIS EPETROLATOS.

PublicadaInvention Patent

Application data

Number

PI8705672

Type

Invention Patent

Filing

10/09/1987

Publication

05/16/1989

Progress at the INPI

  1. Filing10/09/87
  2. Publication05/16/89
  3. Examination01/09/90
  4. Allowance
  5. Grant
  6. In force

Published on 05/16/1989, 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: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. H. (pessoa física)

BA, BR

M. L. (pessoa física)

BA, BR

Inventors

F. H. (pessoa física)

BR

M. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/16/1989

RPI 969

Pedido de patente depositado

#2.1

01/10/1989

RPI 951

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Retificação

#15.3

10/13/1992

RPI 1141

Solicitação de exame técnico

#4.1

01/09/1990

RPI 1001

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