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Official data from INPI

PROCESSO DE RECUPERAÇÃO DE ALCATRÃO COM INJEÇÃO DE ALCATRÃO OU ÁCIDO PIROLENHOSO OU LÍQUIDO PIROLENHOSO OU ÁGUA OU OUTROS

Em AnáliseInvention Patent
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Application data

Number

PI8008531

Type

Invention Patent

Filing

12/29/1980

Publication

08/10/1982
View on INPI

Progress at the INPI

Office action pending
  1. Filing12/29/80
  2. Publication08/10/82
  3. Examination03/15/83
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical office action on this application. If it is not answered in time, the application is abandoned (art. 36 of the Brazilian IP Act).

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Latest action published by the INPI: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cia. Aços Especiais Itabira - ACESITA

MG, BR

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Inventors

A. D. (pessoa física)

A. S. (pessoa física)

M. A. (pessoa física)

M. D. (pessoa física)

R. D. (pessoa física)

S. M. (pessoa física)

V. E. (pessoa física)

Technical data

IPC Classification

C10C 1/00C10C 1/18

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

15.7

08/08/1989

RPI 981

Retificação

#15.3

11/24/1987

RPI 892

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

03/15/1983

RPI 647

Publicação do pedido de patente

#3.1

08/10/1982

RPI 616

15.7

03/20/1990

RPI 1010

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