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Official data from INPI

COMPOSIÇÃO INIBIDORA DE LIXIVIAÇÃO/CORROSÃO E PROCESSO PARA INIBIR A LIXIVIAÇÃO E A CORROSÃO E PROVOCAR A QUEDA DE RESISTÊNCIA ÔHMICA EM ATERRAMENTOS ELÉTRICOS

Em AnáliseInvention Patent
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Application data

Number

PI8706184

Type

Invention Patent

Filing

10/30/1987

Publication

06/06/1989
View on INPI

Progress at the INPI

  1. Filing10/30/87
  2. Publication06/06/89
  3. Abandoned11/28/89
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações de Minas Gerais S/A - Telemig

MG, BR

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Inventors

A. F. (pessoa física)

Technical data

IPC Classification

C09K 15/02C09K 17/06C23F 11/00H01R 4/66

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/28/1989

RPI 997

Publicação do pedido de patente

#3.1

06/06/1989

RPI 972

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

11.13

11/04/1997

RPI 1405

11.31

11/04/1997

RPI 1405

Arquivamento - Art. 36 §1° da LPI

#11.2

09/09/1997

RPI 1397

Republicação - classificação IPC

#15.11

09/09/1997

RPI 1397

Exigência - art. 36 da LPI

#6.1

12/31/1996

RPI 1361

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