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Official data from INPI

INSTALAÇÃO E PROCESSO PARA PREPARAR SOLUÇÃO DE HIDRÓXIDO DE AMÔNIO

Em AnáliseInvention Patent

Application data

Number

PI8606211

Type

Invention Patent

Filing

12/16/1986

Publication

07/05/1988

Progress at the INPI

  1. Filing12/16/86
  2. Publication07/05/88
  3. Examination09/20/88
  4. Allowance10/27/92
  5. Abandoned
  6. In force

The application was allowed on 10/27/1992 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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - Usiminas

MG, BR

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Inventors

A. B. (pessoa física)

BR

R. C. (pessoa física)

BR

T. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

07/05/1988

RPI 924

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Arquivamento - Art. 38 §2° da LPI

#11.4

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

03/09/1993

RPI 1162

Deferimento

#9.1

10/27/1992

RPI 1143

Exigência - art. 36 da LPI

#6.1

11/05/1991

RPI 1092

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