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Official data from INPI

PROCESSO PARA REDUÇÃO DIRETA DE MATERIAIS CONTENDO ÓXIDO DE FERRO NO FORNO TUBULAR ROTATIVO

Prazo de SigiloInvention Patent

Application data

Number

PI8902353

Type

Invention Patent

Filing

05/19/1989

Publication

01/09/1990

Progress at the INPI

  1. Filing05/19/89
  2. Publication01/09/90
  3. Examination11/26/91
  4. Allowance04/16/96
  5. Abandoned
  6. In force

The application was allowed on 04/16/1996 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

DE

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Inventors

G. E. (pessoa física)

DE

H. S. (pessoa física)

DE

L. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 17 433.2 · 05/21/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/04/1989

RPI 976

Arquivamento - Art. 38 §2° da LPI

#11.4

01/27/1998

RPI 1414

Notificação para pagamento de retribuição

#13.1

02/18/1997

RPI 1368

Deferimento

#9.1

04/16/1996

RPI 1324

6.2

11/14/1995

RPI 1302

Solicitação de exame técnico

#4.1

11/26/1991

RPI 1095

Publicação do pedido de patente

#3.1

01/09/1990

RPI 1001

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